bluuebunny/crossref_metadata_2025 huggingface dataset:
Climatic Change of Summer Rainstorms and the Water Vapor Budget in the Sichuan Basin
Authors: Qi Dongmei , Li Yueqing , Zhou Changyan , Chen Dan
Published: February 2022

This study aims to examine the variation of the characteristics of summer rainstorms and water vapor budget in the Sichuan Basin by using daily precipitation observation data and monthly mean ERA-Interim reanalysis data during 1979–2016. The results show that the spatial and temporal distribution of rainstorms in the Sichuan Basin is the result of the interaction between the special topography of the Sichuan Basin and different water vapor transports at low latitudes. The precipitation amount and frequency of rainstorms are mainly affected by the water vapor transports and budgets in different regions, and the intensity of rainstorms is mainly affected by the dynamic effects of regional and local topography, especially in the western and northern basin. The main reasons for the change of summer rainstorms in the Sichuan Basin include the atmospheric circulation over the key area of air–sea interaction in the tropical region, the anomalies of regional circulation, and water vapor transports in eastern China and the Sichuan Basin. A conceptual model for the summer rainstorm anomaly in the Sichuan Basin is proposed. With the establishment of consistent easterly airflow in the low-latitude tropical area (130°E–180°, 0°–10°N) and the anticyclone on its north, an anomalous southeasterly airflow and water vapor divergence maintain over eastern and southern China while an anomalous southeasterly airflow and water vapor convergence appear over the Sichuan Basin. So, more summer rainstorms occur in this region. Conversely, with the establishment of consistent westerly airflow in that same tropical area and the cyclone on its north, an anomalous easterly airflow and water vapor convergence maintain over eastern and southern China while an anomalous northeasterly airflow and water vapor divergence appear over the Sichuan Basin. So, fewer summer rainstorms occur in this region.

Significance Statement

Rainstorm change in the Sichuan Basin has significant regional characteristics. This study aims to reveal the influence of regional variation of water vapor budget on summer rainstorms in the Sichuan Basin, which provides the important basis for the forecast of rainstorm in the Sichuan Basin, as well as new comprehension for the research and application of regional response to climate change. The amount and frequency of rainstorms are mainly affected by water vapor transports and budgets in different regions, and the intensity of rainstorms is mainly affected by the dynamic action of different regional and local topography. It reveals the new mechanism of multiscale interaction between the special topography of the Sichuan Basin and different water vapor transport in low latitudes.
Improved Representation of Horizontal Variability and Turbulence in Mesoscale Simulations of an Extended Cold-Air Pool Event
Authors: Arthur Robert S. , Juliano Timothy W. , Adler Bianca , Krishnamurthy Raghavendra , Lundquist Julie K. , Kosović Branko , Jiménez Pedro A.
Published: February 2022

Cold-air pools (CAPs), or stable atmospheric boundary layers that form within topographic basins, are associated with poor air quality, hazardous weather, and low wind energy output. Accurate prediction of CAP dynamics presents a challenge for mesoscale forecast models in part because CAPs occur in regions of complex terrain, where traditional turbulence parameterizations may not be appropriate. This study examines the effects of the planetary boundary layer (PBL) scheme and horizontal diffusion treatment on CAP prediction in the Weather Research and Forecasting (WRF) Model. Model runs with a one-dimensional (1D) PBL scheme and Smagorinsky-like horizontal diffusion are compared with runs that use a new three-dimensional (3D) PBL scheme to calculate turbulent fluxes. Simulations are completed in a nested configuration with 3-km/750-m horizontal grid spacing over a 10-day case study in the Columbia River basin, and results are compared with observations from the Second Wind Forecast Improvement Project. Using event-averaged error metrics, potential temperature and wind speed errors are shown to decrease both with increased horizontal grid resolution and with improved treatment of horizontal diffusion over steep terrain. The 3D PBL scheme further reduces errors relative to a standard 1D PBL approach. Error reduction is accentuated during CAP erosion, when turbulent mixing plays a more dominant role in the dynamics. Last, the 3D PBL scheme is shown to reduce near-surface overestimates of turbulence kinetic energy during the CAP event. The sensitivity of turbulence predictions to the master length-scale formulation in the 3D PBL parameterization is also explored.

Significance Statement

In this article, we demonstrate how a new framework for modeling atmospheric turbulence improves cold pool predictions, using a case study from January 2017 in the Columbia River basin (U.S. Pacific Northwest). Cold pools are regions of cold, stagnant air that form within valleys or basins, and improved forecasts could help to mitigate the risks they pose to air quality, transportation, and wind energy production. For the chosen case study, our tests show a reduction in temperature and wind speed errors by up to a factor of 2–3 relative to standard model options. These results strongly motivate continued development of the framework as well as its application to other complex weather events.
Future Changes of PNA-like MJO Teleconnections in CMIP6 Models: Underlying Mechanisms and Uncertainty
Authors: Wang Jiabao , Kim Hyemi , DeFlorio Michael J.
Published: February 2022

Future changes in boreal winter MJO teleconnections over the Pacific–North America (PNA) region are examined in 15 Coupled Model Intercomparison Project phase 6 models (CMIP6s) under SSP585 (i.e., Shared Socioeconomic Pathway 5 following approximately the representative concentration pathway RCP8.5) scenarios. The most robust and significant change is an eastward extension (∼4° eastward for the multimodel mean) of MJO teleconnections in the North Pacific. Other projected changes in MJO teleconnections include a northward extension, more consistent patterns between different MJO events, stronger amplitude, and shorter persistence; however, these changes are more uncertain and less significant with a large intra- and intermodel spread. Mechanisms of the eastward teleconnection extension are investigated by comparing impacts of the future MJO and basic state changes on the anomalous Rossby wave source (RWS) and teleconnection pathways with a linear baroclinic model (LBM). The eastward extended jet in the future plays a more important role than the eastward-extended MJO in influencing the east–west position of MJO teleconnections. It leads to more eastward teleconnection propagation along the jet due to the eastward extension of turning latitudes before they propagate into North America. MJO teleconnections thus are positioned 2.9° more eastward in the North Pacific in the LBM. The eastward extended MJO, on the other hand, helps to generate a more eastward-extended RWS. However, negligible change is found in the east–west position of MJO teleconnections (only 0.3° more eastward in the LBM) excited from this RWS without the jet impacts. The above results suggest the dominant role of the jet change in influencing future MJO teleconnection position by altering their propagation pathways.
Seasonal-to-Decadal Variability and Prediction of the Kuroshio Extension in the GFDL Coupled Ensemble Reanalysis and Forecasting System
Authors: Joh Youngji , Delworth Thomas L. , Wittenberg Andrew T. , Cooke William F. , Yang Xiaosong , Zeng Fanrong , Jia Liwei , Lu Feiyu , Johnson Nathaniel , Kapnick Sarah B. , Rosati Anthony , Zhang Liping , McHugh Colleen
Published: February 2022

The Kuroshio Extension (KE), an eastward-flowing jet located in the Pacific western boundary current system, exhibits prominent seasonal-to-decadal variability, which is crucial for understanding climate variations in the northern midlatitudes. We explore the representation and prediction skill for the KE in the GFDL SPEAR (Seamless System for Prediction and Earth System Research) coupled model. Two different approaches are used to generate coupled reanalyses and forecasts: 1) restoring the coupled model’s SST and atmospheric variables toward existing reanalyses, or 2) assimilating SST and subsurface observations into the coupled model without atmospheric assimilation. Both systems use an ocean model with 1° resolution and capture the largest sea surface height (SSH) variability over the KE region. Assimilating subsurface observations appears to be essential to reproduce the narrow front and related oceanic variability of the KE jet in the coupled reanalysis. We demonstrate skillful retrospective predictions of KE SSH variability in monthly (up to 1 year) and annual-mean (up to 5 years) KE forecasts in the seasonal and decadal prediction systems, respectively. The prediction skill varies seasonally, peaking for forecasts initialized in January and verifying in September due to the winter intensification of North Pacific atmospheric forcing. We show that strong large-scale atmospheric anomalies generate deterministic oceanic forcing (i.e., Rossby waves), leading to skillful long-lead KE forecasts. These atmospheric anomalies also drive Ekman convergence and divergence, which forms ocean memory, by sequestering thermal anomalies deep into the winter mixed layer that re-emerge in the subsequent autumn. The SPEAR forecasts capture the recent negative-to-positive transition of the KE phase in 2017, projecting a continued positive phase through 2022.
The Biophysical Impacts of Deforestation on Precipitation: Results from the CMIP6 Model Intercomparison
Authors: Luo Xing , Ge Jun , Guo Weidong , Fan Lei , Chen Chaorong , Liu Yu , Yang Limei
Published: February 2022

Deforestation can impact precipitation through biophysical processes and such effects are commonly examined by models. However, previous studies mostly conduct deforestation experiments with a single model and the simulated precipitation responses to deforestation diverge across studies. In this study, 11 Earth system models are used to robustly examine the biophysical impacts of deforestation on precipitation, precipitation extremes, and the seasonal pattern of the rainy season through a comparison of a control simulation and an idealized global deforestation simulation with clearings of 20 million km2of forests. The multimodel mean suggests decreased precipitation, reduced frequency and intensity of heavy precipitation, and shortened duration of rainy seasons over deforested areas. The deforestation effects can even propagate to some regions that are remote from deforested areas (e.g., the tropical and subtropical oceans and the Arctic Ocean). Nevertheless, the 11 models do not fully agree on the precipitation changes almost everywhere. In general, the models exhibit higher consistency over the deforested areas and a few regions outside the deforested areas (e.g., the subtropical oceans) but lower consistency over other regions. Such intermodel spread mostly results from divergent responses of evapotranspiration and atmospheric moisture convergence to deforestation across the models. One of the models that has multiple simulation members also reveals considerable spread of the precipitation responses to deforestation across the members due to internal model variability. This study highlights the necessity of robustly examining precipitation responses to deforestation based on multiple models and each model with multiple simulation members.
Impact of Assimilating Ground-Based and Airborne Radar Observations for the Analysis and Prediction of the Eyewall Replacement Cycle of Hurricane Matthew (2016) Using the HWRF Hybrid 3DEnVar System
Authors: Green Tyler , Wang Xuguang , Lu Xu
Published: February 2022

In this study, hourly data assimilation (DA) cycling is performed during a 24-h time period for Hurricane Matthew (2016), assimilating ground-based (GBR) and tail-Doppler radar (TDR) observations together, as well as separately using HWRF and its Hybrid 3DEnVar DA system. The objective is to examine the impacts of assimilating such data on the analysis and prediction of the weakening and re-intensification stages of the eyewall replacement cycle (ERC) of Matthew. Experiments assimilating GBR observations make quicker corrections to the initially inconsistent storm structure than does the TDR experiment, resulting in the primary and secondary eyewalls being realistically represented during the DA cycling period. The TDR experiment analyses show less-realistic concentric eyewall structure before, during, and after TDR observations become available. The forecasts from experiments assimilating GBR observations show more-realistic structural and point intensity changes for the ERC consistently throughout the cycling period when compared with the experiments assimilating TDR observations. Combined assimilation of GBR and TDR observations show similar ERC forecasts, on average, to the GBR experiment. The superior performance of the GBR experiments is shown to be tied to its earlier and longer availability despite its limited low-level coverage especially at the early stage of the cycling. The inferior performance of the TDR experiments even during the availability of TDR is hypothesized to be a result of rapidly changing 3D observational coverage during the high-frequency cycling. Brief mechanism diagnostics additionally suggest the need of properly initializing the TC concentric eyewalls to capture the ERC during the forecasts.
Revision of Drive Theory
Authors: Solms Mark
Published: February 2022

Several deep revisions of Freud’s theory of the drives are proposed: (1) Drives are conscious and are in fact the source of all consciousness. (2) Drive energy is equated with variational free energy and is therefore quantifiable in principle. (3) There are not two drives but many, seven of which may be described as “emotional” as opposed to “bodily” drives. (4) All drives are self-preservative or preservative of the species; there is no death drive at work in the mind. This means, at the mechanistic level, that all drives are homeostatic and anti-entropic. (5) The great task of mental development is to supplement instinctual predictions about how our multiple drive demands may be met and reconciled with each other. This work is done by learning from experience, mainly through voluntary behavior, which is governed by conscious feelings.
Linking Executive Compensation to Climate Performance
Authors: Ritz Robert A.
Published: February 2022

Climate change has risen to board level on the corporate agenda. Under pressure from institutional investors, companies are reformulating their strategies for a low-carbon world. A novel aspect of the emerging corporate response is that executive compensation is being linked to climate performance. This article examines the different ways that climate-linked incentive pay is used at European and U.S. energy majors, and it develops a framework—aimed at companies in “hard-to-decarbonize” sectors—to understand the benefits, challenges, and key design options. It also makes recommendations on how this organizational practice might be refined over time.
Biopolymer nanocomposites of polyhydroxybutyrate and cellulose nanofibrils: Effects of cellulose nanofibril loading levels
Authors: Aydemir Deniz , Gardner Douglas J
Published: February 2022

In this paper, the effect of cellulose nanofibrils (CNFs) loading levels on the conventional and dynamic mechanical, morphological, thermal and rheological properties of the polyhydroxybutyrate (PHB) biopolymers were studied. According to the results, adding CNFs from 1% to 20% generally didn’t provide any improvement in the flexural, tensile and izod impact strength attributable to void formation and pulling out and agglomeration of nanofibrils in the matrix, which was observed during morphological characterization, however adding CNFs substantially increased both flexural and tensile modulus of elasticity. Thermal analysis showed that adding CNFs generally decreased degradation at high temperatures of the biopolymer nanocomposites (BNCs) The addition of CNFs at 1, 10 and 20% increased the E' and E'' of neat PHB but the other loadings decreased them, and tan delta increased with CNF loadings of 3, 5, 10 and 20%, and finally adding CNFs didn’t change the rheological behavior of the composites.
Facile fabrication of polydopamine nanosphere-decorated fabric for solar steam generation
Authors: He Mantang , Dai Hongyu , Wang Liming , Qin Xiaohong , Yu Jianyong
Published: February 2022

Solar steam generation has been regarded as a promising technology to obtain clean water from wastewater or seawater through converting incident sunlight to heat. Fabrics can be easily combined with many photothermal materials by various methods and possess a unique porous structure for efficient water transport and vapor diffusion. Herein, a solar steam generator with a rough surface based on novel polydopamine nanospheres grown onto fabric (PDANSs@fabric) is designed and fabricated by a one-step method. Consequently, the developed evaporator could achieve a water evaporation rate of 1.48 kg m−2 h−1 under 1 sun illumination. Moreover, the as-prepared PDANSs@fabric-based solar steam generator keeps a close level of water evaporation performance after washing for 30 min, exhibiting good stability and washability in steam generation. In addition, the designed evaporator can be applied in various water conditions, including seawater, dye wastewater and heavy metal ion wastewater, offering great inspiration in the ﬁelds of seawater desalination, wastewater treatment and energy collection.
Estimating the Cost of Industry Investment in Drug Research and Development: A Review of Methods and Results
Authors: Rennane Stephanie , Baker Lawrence , Mulcahy Andrew
Published: February 2022

Research and development (R&D) costs factor into considerations of the tradeoffs between prices, intellectual property protection, and incentivizing innovation, all of which can have implications for policy development. Yet, there is little consensus on the actual cost of R&D for new drugs. We review and synthesize papers estimating drug R&D costs incurred by industry. We find a substantial range of per-drug costs, from $113 million to just over $6 billion in 2018 dollars. This range includes estimates covering all new drugs, new molecular entities, and drugs in specific therapeutic classes. The range is narrower—$318 million to $2.8 billion—for estimates of the per-drug cost for new molecular entities. We discuss the data sources, methods, and assumptions used in each study to provide context for the wide range in existing estimates. Differences in definitions, methods, and assumptions lead to large divergences in the main estimates, and the combination of fragmented data sources and different assumptions across studies means that the resulting estimates that can rarely be directly compared. We suggest areas for future research and data collection that would result in more comparable and robust estimates to inform ongoing policy discussion.
Integrating Non-Invasive Brain Stimulation Into the Undergraduate Psychology Curriculum: An Upper-Level Laboratory Course Using Transcranial Direct Current Stimulation
Authors: Wilson Kevin D.
Published: February 2022

Background

Psychology has seen a recent explosion in the use of non-invasive brain stimulation (NIBS) to understand cognition. The prevalence of techniques such as transcranial direct current stimulation (tDCS) in published research has grown immensely in the past decade; however, there has been little effort to incorporate these techniques into the undergraduate curriculum through course-based undergraduate research experiences (CUREs).

Objective

To demonstrate the feasibility of creating a CURE focused on tDCS and to offer practical advice on how to create one at other institutions.

Method

I present a novel undergraduate CURE focused on tDCS, as well as practical advice on how to teach about and safely implement student-driven tDCS experiments.

Results

Undergraduate students learned about and engaged first-hand in their own non-invasive brain stimulation research in an upper-level psychology laboratory course.

Conclusion

An undergraduate laboratory course that focuses on non-invasive brain stimulation has a range of potential benefits for students and instructors alike. Furthermore, it allows undergraduates to gain experience using a rapidly growing neuroscientific methodology.

Teaching Implications

Given that tDCS is a safe and relatively inexpensive method of modulating brain function, the present course demonstrates the ease, and potential advantages, of incorporating NIBS into the undergraduate psychology curriculum.
Torah and Divine Revelation in Three Jewish Texts: 4QInstruction, Wisdom of Solomon and the Fourth Gospel
Authors: Hubbard Jeffrey
Published: February 2022

Studies of the sapiential traditions in the Fourth Gospel remain unfortunately insulated from recent research into the fluid relationship between wisdom and apocalypticism in early Judaism. The well-known connection made between wisdom and Torah in Sirach and Baruch leads many scholars to mischaracterize John’s perspective on Law as incongruous with Jewish sapientialism. However, appropriate consideration of the interconnection between wisdom and apocalypticism demonstrates the error of this characterization. This article compares the relationship between wisdom and Torah in 4QInstruction, the Wisdom of Solomon, and the Gospel of John. Both Wisdom and 4QInstruction offer instructive comparanda for the Fourth Gospel’s presentation of wisdom. The article proceeds in essentially two parts. First, I consider the role of the law in 4QInstruction and the Wisdom of Solomon, arguing that each of these very different texts subordinates the written law to a revealed heavenly wisdom. Then, in critical dialogue with the work of the late John Ashton, I reexamine the relationship between divine revelation and Torah in John and suggest that the Fourth Gospel is most fruitfully read as another example of the fluid boundaries between wisdom and apocalypticism in early Judaism.
Early death in supraglottic laryngeal squamous cell carcinoma: A population-based study
Authors: Liu Jian , Sun Qing , Zhao Jing , Qin Xuemei , Gao Tianle , Bai Guangping , Chen Guohui , Guo Zhiqiang
Published: February 2022

Background

Supraglottic laryngeal squamous cell carcinoma (LSCC) is the second most common type of laryngeal cancer with a poor prognosis. Current population-based estimates of the early death rate and associated factors for early death of supraglottic LSCC are lacking. The purpose of this study was to assess the early death rate and related factors for early death in patients with supraglottic LSCC.

Methods

We identified 3733 adult patients diagnosed with supraglottic LSCC between 2010 and 2017 for whom the vital status at 3 months was known from the Surveillance, Epidemiology, and End Results (SEER) database. Patients were staged according to the seventh edition of the American Joint Committee on Cancer (AJCC) tumor-node-metastasis (TNM) staging system. The early death (survival time ≤ 3 months) rate was calculated. Univariate and multivariate logistic regression analyses were performed to identify the risk factors associated with the early death rate.

Results

313 (8.38%) of the 3733 patients died within 3 months of diagnosis of supraglottic LSCC. Of these, 225 patients died from cancer-specific causes. Multivariate logistic regression analyses confirmed that advanced age, male sex, advanced T stage, advanced N stage, advanced M stage, and not undergoing treatment (surgery, radiotherapy, and chemotherapy) had significant correlations with all-cause early death in supraglottic LSCC. In addition, advanced age, advanced T stage, advanced N stage, advanced M stage, and not undergoing treatment (surgery, radiotherapy, and chemotherapy) were significantly correlated with cancer specificity in supraglottic LSCC.

Conclusion

When a tumor is newly diagnosed, we should pay close attention to sex, age, unmarried status and AJCC TNM staging to quickly detect supraglottic LSCC patients with a tendency toward early death. These findings have implications for precise prognosis prediction and individualized and personalized patient counseling and therapy.
Small female citation advantages for US journal articles in medicine
Authors: Thelwall Mike , Maflahi Nabeil
Published: February 2022

Female under-representation continues in senior roles within academic medicine, potentially influenced by a perception that female research has less citation impact. This article provides systematic evidence of (a) female participation rates from the perspective of published journal articles in 46 Scopus medical subject categories 1996–2018 and (b) gender differences in citation rates 1996–2014. The results show female proportion increases 1996–2018 in all fields and a female majority of first-authored articles in two-fifths of categories, but substantial differences between fields. A paper is 7.3 times more likely to have a female first author in Obstetrics and Gynaecology than in Orthopaedics and Sports Medicine. Only three fields had a female last author majority by 2018, a probable side effect of ongoing problems with appointing female leaders. Female first-authored research tended to be more cited than male first-authored research in most fields (59%), although with a maximum difference of only 5.1% (log-transformed normalised citations). In contrast, male last-authored research tends to be more cited than female last-authored research, perhaps due to cases where a senior male has attracted substantial funding for a project. These differences increase if team sizes are not accounted for in the calculations. Since female first-authored research is cited slightly more than male first-authored research, properly analysed bibliometric data considering career gaps should not disadvantage female candidates for senior roles.
The effectiveness of nutritional interventions on COVID-19 outcomes: A protocol for systematic review and meta-analysis
Authors: Doustmohammadian Azam , Clark Cain CT , Amini Maryam
Published: February 2022

Background: Despite global efforts to treat and alleviate the outcomes of COVID-19, no consensus has been reached regarding the optimal approach. Some nutrients have been known to be vital for the integrity of the immune system. Although limited interventional studies support this idea, the findings of some cross-sectional and case studies have been encouraging. Aim: The present study will seek to determine the effectiveness of nutritional interventions on the outcomes of COVID-19. Methods: Electronic databases including PubMed/MEDLINE, Web of Science, Scopus, and Google Scholar will be searched for articles published from October 1st, 2019, to January 12th, 2022. Different study designs, both randomized and nonrandomized trials, cross-sectional or cohort studies, and pre and post-interventions will be included. Screening, selection, and extraction of data as well as quality assessment of included studies, will be carried out by two separate reviewers. Any potential conflicts will be resolved through discussion. An appropriate risk of bias assessment tool will be used to appraise the included studies. Then, the results will be synthesized and pooled for meta-analysis. If the meta-analysis is not performed, the reason will be provided. After summarizing the results and providing conclusions, the specific features associated with effective interventions will be presented based on the power of each study.
Rethinking Human-Smartphone Interaction with Deleuze, Guattari, and Polanyi
Authors: Fazio Nicholas
Published: February 2022

An inbuilt theoretical deficiency of any cybernetic or phenomenological accounts of human-smartphone interaction is that their inherited frameworks suffer from lopsided explanatory proficiencies. Neither can explicate one ‘side’ of the interaction without inappropriately foisting those logics onto its dyadic counterpart. In this paper, both Michael Polanyi’s bio-philosophy and a Deleuzo-Guattarian philosophy of brain seek to remedy this conceptual deficit by positing a conceptual toolkit that incorporates pertinent cybernetic and phenomenological revelations while abjuring their dogmatizing propensities. This conjoined reading of Polanyi with Deleuze and Guattari asserts that temporary, bounded structures of interference between mind and machine – rooted in asymmetry, inertia, and labile planes of cognition – are the grounding dimension of human-smartphone interaction, which is itself taken as emblematic of our wider relations to smart technologies.
Predicting recovery and disability after surgery in patients with severe obesity: The role of the six-minute walk test
Authors: Smith Natalie A , Batterham Marijka , Shulman Mark A
Published: February 2022

The most appropriate method to predict postoperative outcomes in patients with severe obesity undergoing elective non-bariatric surgery is not known. We conducted a single-centre prospective cohort study in patients with a body mass index of at least 35 kg/m2 undergoing non-bariatric, non-cardiac surgery. Patients completed the six-minute walk test prior to surgery. Disability was measured before and six months after surgery using the World Health Organization disability assessment schedule. Primary outcome measures included quality of recovery at one month and significantly increased disability at six months after surgery. A total of 293 patients participated. The median body mass index was 41 kg/m2. Patients generally recovered well. Following surgery, 9% of patients experienced a poor quality of recovery and 7% developed a significant increase in disability. The proportion of patients free from clinically significant disability increased from 66% prior to surgery to 90% at six months after surgery. The distance walked in six minutes was weakly predictive of poor recovery at one month and significantly increased disability at six months; weight and body mass index were not. The area under the receiver operating characteristic curve was 0.65 (95% confidence intervals 0.51 to 0.78) for poor recovery and 0.64 (95% confidence intervals 0.51 to 0.77) for increased disability. A preoperative six-minute walk test distance of 308 m was the best cut-off value for predicting increased postoperative disability (sensitivity 0.68, specificity 0.63). The six-minute walk test was most discriminatory at shorter distances. This population of patients with severe obesity appeared to recover well and had few adverse outcomes. The degree of functional capacity was more important than the degree of obesity in predicting postoperative outcomes.
Car-Following Properties of a Commercial Adaptive Cruise Control System: A Pilot Field Test
Authors: Raju Narayana , Schakel Wouter , Reddy Nagarjun , Dong Yongqi , Farah Haneen
Published: February 2022

Automated driving systems, which can take over certain dynamic driving tasks from the driver, are becoming increasingly available in commercial vehicles. One of these automated driving systems widely introduced in commercial vehicles is adaptive cruise control (ACC). This system is designed to maintain certain desired driving speeds and time headways as chosen by drivers and based on the settings available within the system. The properties and actual performance of these systems will affect the traffic flow and its stability. However, the specific properties and their workings are rarely publicly available. Therefore, the main aim of this paper is to test the actual performance of a commercial ACC system under different desired speed and distance gap settings, as well as driving modes in a car-following situation. For this purpose, a pilot field test was conducted in the Netherlands in which two identical commercial vehicles equipped with ACC systems were driven simultaneously. The first vehicle was used to create a pre-specified speed profile by adapting the ACC system settings manually, whereas the second vehicle followed the lead vehicle when the ACC system was engaged to test its actual performance. The main findings indicate that the different system settings affect the car-following indicators, and system response times were found to be comparable to human response times. The eco mode was found to affect some of the car-following indicators, and it does not deteriorate safety below the safety level of driving with short headway setting in drive mode.
Full Vehicle Trajectory Planning Model for Urban Traffic Control Based on Imitation Learning
Authors: Ying Jun , Feng Yiheng
Published: February 2022

Connected and automated vehicles (CAVs) extend urban traffic control from temporal to spatiotemporal by enabling the control of CAV trajectories. Most of the existing studies on CAV trajectory planning only consider longitudinal behaviors (i.e., in-lane driving), or assume that the lane changing can be done instantaneously. The resultant CAV trajectories are not realistic and cannot be executed at the vehicle level. The aim of this paper is to propose a full trajectory planning model that considers both in-lane driving and lane changing maneuvers. The trajectory generation problem is modeled as an optimization problem and the cost function considers multiple driving features including safety, efficiency, and comfort. Ten features are selected in the cost function to capture both in-lane driving and lane changing behaviors. One major challenge in generating a trajectory that reflects certain driving policies is to balance the weights of different features in the cost function. To address this challenge, it is proposed to optimize the weights of the cost function by imitation learning. Maximum entropy inverse reinforcement learning is applied to obtain the optimal weight for each feature and then CAV trajectories are generated with the learned weights. Experiments using the Next Generation Simulation (NGSIM) dataset show that the generated trajectory is very close to the original trajectory with regard to the Euclidean distance displacement, with a mean average error of less than 1 m. Meanwhile, the generated trajectories can maintain safety gaps with surrounding vehicles and have comparable fuel consumption.
Weight Health Among Hispanic Women in Albuquerque: A Preliminary Study to Evaluate the De las Mías App Prototype
Authors: Macario Everly , Roberts Melissa H. , Gunter Margaret J. , Von Worley Ann , Naegelin Sara , Matiella Ana Consuelo
Published: February 2022

Our 3-year study tested a culturally tailored digital platform to improve weight health among Hispanic women. Phase I evaluated a prototype ( n = 54). Phase II tested the De Las Mías app ( n = 195). Both included Hispanic women with BMI 25 to 39. In Phase II weight was measured at 0-, 3-, and 6-months. A telephone interview was conducted at 9-months. Primary outcome was >5% weight loss at 6 months. Experimental participants were approximately 6 times more likely to experience >5% weight loss at 6 months. Greater benefit was observed for participants age 35 to 50. Among participants age 35 to 50, 29.4% of the experimental group, compared with 12.1% in the control group, had >5% weight loss at 6 months ( p-value = .08); and 46.9% of the experimental group, compared with 27.3% of control group participants ( p-value = .10), had a gain in self-efficacy in making changes in physical activity. Nine of 10 participants overall maintained some healthy changes at 9 months.
Understanding the Experiences of end of Life Care for Patients with Mesothelioma from the Perspective of Bereaved Family Caregivers in the UK: A Qualitative Analysis
Authors: Harrison Madeleine , Darlison Liz , Gardiner Clare
Published: February 2022

Objectives: Mesothelioma is a rare, progressive cancer with a short trajectory from diagnosis to the end of life. This study explores the experiences of palliative and end of life care for patients with mesothelioma from the perspective of bereaved family caregivers. Methods: A qualitative, descriptive approach was adopted comprising face-to-face, semi-structured interviews with bereaved caregivers of patients with mesothelioma in the UK. An inductive, thematic analysis was conducted using the ‘Framework’ approach. Results: Nine bereaved caregivers participated. Four themes emerged: understanding what lies ahead; carer support; care co-ordination; managing after death: practicalities, inquests and abandonment. Caregivers need to understand what lies ahead in order to emotionally and practically prepare themselves for supporting the patient at the end of life. Information and support needs of caregivers were often distinct from those of patients, including the importance of information about the coroner's involvement. The importance of care co-ordination was emphasised, with caregivers valuing on-going relationships and a named individual taking responsibility for co-ordinating the patients care. Feelings of abandonment arose when there was no contact with healthcare professionals following the death of the patient. Conclusions: Greater opportunity for open, one-to-one communication between family caregivers and healthcare professionals is vital to enable the caregiver to prepare for what lies ahead at the end of life and prevent feelings of abandonment after the death of the patient. Improved care co-ordination and partnership working are essential for supporting both patient and caregiver at the end of life.
Prognostic Value of Sequential Organ Failure Assessment (SOFA) Score in Critically-Ill Combat-Injured Patients
Authors: McCarthy Shannon L. , Stewart Laveta , Shaikh Faraz , Murray Clinton K. , Tribble David R. , Blyth Dana M.
Published: February 2022

Background: Infection is a frequent and serious complication after combat-related trauma. The Sequential Organ Failure Assessment (SOFA) score has been shown to have predictive value for outcomes, including sepsis and mortality, among various populations. We evaluated the prognostic ability of SOFA score in a combat-related trauma population. Methods: Combat casualties (2009–2014) admitted to Landstuhl Regional Medical Center (LRMC; Germany) intensive care unit (ICU) within 4 days post-injury followed by transition to ICUs in military hospitals in the United States were included. Multivariate logistic regression was used to determine predictive effect of selected variables and receiver operating characteristic (ROC) curve analysis was used to evaluate overall accuracy of SOFA score for infection prediction. Results: Of the 748 patients who met inclusion criteria, 436 (58%) were diagnosed with an infection (32% bloodstream, 63% skin and soft tissue, and 40% pulmonary) and were predominantly young (median 24 years) males. Penetrating trauma accounted for 95% and 86% of injuries among those with and without infections, respectively (p < 0.001). Median LRMC admission SOFA score was 7 (interquartile range [IQR]: 4–9) in patients with infections versus 4 (IQR: 2–6) in patients without infections (p < 0.001). Thirty-day mortality was 2% in both groups. On multivariate regression, LRMC SOFA score was independently associated with infection development (odds ratio: 1.2; 95% confidence interval: 1.1–1.3). The ROC curve analysis revealed an area under the curve of 0.69 for infection prediction, and 0.80 for mortality prediction. Conclusions: The SOFA scores obtained up to 4 days post-injury predict late onset infection occurrence. This study revealed that for every 1 point increase in LRMC SOFA score, the odds of having an infection increases by a factor of 1.2, controlling for other predictors. The use of SOFA score in admission assessments may assist clinicians with identifying those at higher risk of infection following combat-related trauma.
Predicting Ventriculoperitoneal Shunt Dependence in High Grade Aneurysmal Subarachnoid Hemorrhage
Authors: Bibu Steve , Iliceto Alessandro , Chukwuneke Florence , Munier Sean , Stecy Madeline , Green Bryan , Lee Kiwon
Published: February 2022

Introduction

Aneurysmal subarachnoid hemorrhage (aSAH) commonly presents with hydrocephalus due to obstruction of cerebrospinal fluid (CSF) passage across the ventricular system in the brain. Placement of an external ventricular device (EVD) and in some cases ventriculoperitoneal shunt (VPS) are often necessary for patients requiring prolonged CSF diversion. The study aimed at evaluating critical factors that play a role in determining the need for extended extraventricular drainage.

Methods

We performed a retrospective observational cohort study of two groups of patients with radiological imaging confirmed high grade aSAH (Hunt & Hess grades 3-5) who required VPS placement, shunt-dependent group, and who did not require long term CSF diversion, non-shunt-dependent group. We collected and analyzed data regarding the daily CSF output for 10 days following EVD placement, daily EVD height, intracranial pressure (ICP) and cerebral perfusion pressure (CPP), indicators of hydrocephalus, and CSF characteristics.

Results

The cohort, comprising of 8 patients in the shunt-dependent group and 32 patients in the non-shunt-dependent group, displayed median daily CSF output of 275.1 mL/day and 193.4 mL/day, respectively ( P = .0005). ROC curve for CSF drainage for the two groups showed an area under the curve (AUC) of 0.71 with a 95% confidence interval (CI) 0.65 to 0.77. Qualitative analysis of CSF characteristics revealed that the shunt-dependent group had more proteinaceous, darker red color, and greater proportion of red blood cells (RBCs) although not statistically significant.

Conclusions

Determinants of prolonged CSF drainage requirements in patients with high grade aSAH are not fully elucidated to this date and there is no standardized protocol for CSF diversion. Our study revealed potential markers that can be used in the assessment for the need for long term CSF diversion. Our limited sample size necessitates further research to establish clear correlations and cutoffs of these parameters in predicting long term CSF diversion requirements.
The impact of eco-environmental regulation on green energy efficiency in China - Based on spatial economic analysis
Authors: Wu Mingran
Published: February 2022

To figure out at what extent of China's investment in energy technology in recent years has helped economic growth and improved the environment. From the basic theory of environmental regulation’s influence on energy consumption efficiency, this study uses the super-efficiency slack base model to measure the green energy efficiency of 30 provinces in China from 2010 to 2019, and uses the kernel density function to analyze evolution trajectory. Then, the spatial Dubin model is used to test the influence of some important economic variables. The results of value show that although China's green energy efficiency improved significantly from 2010 to 2019, the overall performance was lacking. However, the overall efficiency value was significantly improved during the study period. Moreover, the efficiency value was closely related to the performance of economic development. From the dynamic trajectory perspective, efficiency values of all years show the type of "two peaks".Altough the width between the two peaks did not change noticeably, but the efficiency still had a significantly improved. In addition, according to the results of spatial economic regression analysis, eco-environmental constraints, foreign direct investment, and industrial agglomeration were not conducive to the efficiency value, while industrial structure and manufacturing enterprise scale had positive effects. In addition, the influence effects had obvious spatial phenomena. Therefore, for the Chinese government, enterprises and society, the next step is not only to vigorously exploit energy-saving and emission reduction technologies to improve energy consumption efficiency but also to establish reasonable environmental regulation policies to push enterprises to produce in a cleaner way. Additionally, a reasonable regional development plan should be established to promote the rational distribution and flow of the energy industry across different places. This paper provides a novel perspective for the study of energy input and usage.
Unmasking the racism of orthodox international relations/international political economy theory
Authors: Hobson John M
Published: February 2022

This article emerges out of the racism debate in Security Dialogue (May 2020). It takes its cue from the passing claim that Orientalism/Eurocentrism is different from racism and that the former is deemed to be relatively innocuous while the latter is viewed as egregious. Here I reveal how Eurocentrism is equivalent to cultural racism. I show how racism has outwardly shapeshifted through time in everyday life and world politics, and how orthodox international relations theory’s racist trajectory has mirrored this. Since 1945, modern orthodox international relations theory has covered its racism with a non-racist mask through a sublimated discourse that focuses on cultural difference but is white racism in disguise. Unmasking modern international relations/international political economy theory exposes this sublimated racist discourse by revealing its racist double move: first, it whitewashes racism and denies its presence in the conduct of world politics and the global economy in the last three centuries, thereby providing an apologia for racist practices; second, it advances subliminal cultural-racist analytical/explanatory frameworks. I close by solving the conundrum as to how white orthodox international relations scholars who are most probably non-racist (though not anti-racist) in their personal lives embrace, albeit unwittingly, racist theories of world politics and the global economy.
Sign and Spoken Language Processing Differences in the Brain: A Brief Review of Recent Research
Authors: Caldwell Hayley Bree
Published: February 2022

Background:

It is currently accepted that sign languages and spoken languages have significant processing commonalities. The evidence supporting this often merely investigates frontotemporal pathways, perisylvian language areas, hemispheric lateralization, and event-related potentials in typical settings. However, recent evidence has explored beyond this and uncovered numerous modality-dependent processing differences between sign languages and spoken languages by accounting for confounds that previously invalidated processing comparisons and by delving into the specific conditions in which they arise. However, these processing differences are often shallowly dismissed as unspecific to language.

This review examined recent neuroscientific evidence for processing differences between sign and spoken language modalities and the arguments against these differences’ importance. Key distinctions exist in the topography of the left anterior negativity (LAN) and with modulations of event-related potential (ERP) components like the N400. There is also differential activation of typical spoken language processing areas, such as the conditional role of the temporal areas in sign language (SL) processing. Importantly, sign language processing uniquely recruits parietal areas for processing phonology and syntax and requires the mapping of spatial information to internal representations. Additionally, modality-specific feedback mechanisms distinctively involve proprioceptive post-output monitoring in sign languages, contrary to spoken languages’ auditory and visual feedback mechanisms. The only study to find ERP differences post-production revealed earlier lexical access in sign than spoken languages. Themes of temporality, the validity of an analogous anatomical mechanisms viewpoint, and the comprehensiveness of current language models were also discussed to suggest improvements for future research.

Key message:

Current neuroscience evidence suggests various ways in which processing differs between sign and spoken language modalities that extend beyond simple differences between languages. Consideration and further exploration of these differences will be integral in developing a more comprehensive view of language in the brain.