bluuebunny/crossref_metadata_2025 huggingface dataset:
Hair transparency decoding in Asia: From stylists’ perception to in vitro measurement
Authors: Zheng Lu , Matsumoto Noriko , Galliano Anthony , Basu Shuchismita , Wunsch Karl , Isard Olivia , Nakao Chikayo , Nicolas Alexandre , Velleman Damien
Published: December 2021

Background

The concept of hair transparency has been claimed widely in the Japan (and now it is spreading to Asian) hair color market. Despite the general use of this concept, to date, there is no clear and objective description to accurately explain what it is. In this work, we have decoded and gave clarity to the concept of hair transparency via a technical model (validated for both Japan and China markets) composed of measurable parameters of hair property using a single device.

Methodology and Results

A comprehensive study composed of various tests was used, starting with a qualitative identification of key parameters via in‐depth workshop discussions with over 40 Japanese stylists and a panel of 12 consumers. These identified parameters (luminosity, color visibility, and Shine) were then translated into technically measurable parameters of the hair fiber (Diffused light intensity, ratio of RGB channel intensities of Diffused light, and luster) via a single instrument—Hair SAMBA (a dual‐polarized imaging system). Afterward, 10 carefully selected anchor shades were used as visual stimuli in an online pairwise comparison (PC) study with 100 Japanese stylists to generate quantitative transparency perception data of the swatches. Technical parameters of these swatches were measured by SAMBA and consolidated with the PC output, for the creation and validation of the mathematical model. After, with another PC study (N = 100) in China, with seven shades from Japan study and 6 additional Chinese market shades, the applicability of the model in China market was validated.

Conclusion

We have clarified and quantified the concept of hair transparency through a consumer centric approach and with objective data. Our findings will enable the development of optimum transparent shades which better suits consumer needs. Lastly, we would like to highlight the beauty of digitalization in the study: The digital evaluation pathways chosen allowed us to collect quantitative consumer data from two countries for the creation of a robust model under the impact of COVID‐19 and would definitely be the way to go for our future consumer evaluation studies.
A comparative study of melanocytic nevi classification with dermoscopy and high‐frequency ultrasound
Authors: Wang Yu‐Kun , Gao Yuan‐Jing , Liu Jie , Zhu Qing‐Li , Wang Jun‐cheng , Qin Jing , Jin Hong‐Zhong
Published: December 2021

Background

Melanocytic nevi (MN) can be classified into three subtypes according to the depth of the nests of nevus cells which is important for management. High‐frequency ultrasound (HF‐US) can clearly reveal the lesion size, contour, depth, and internal structures. However, the HF‐US studies of MN according to subtypes are limited. We aimed to describe the HF‐US features of MN and explore its value in accurate classification.

Materials and methods

This retrospective study was conducted from January 2018 to November 2019. Eighty‐five patients with MN were included and examined by 50 and 20 MHz HF‐US. The HF‐US features were recorded including morphological flatness, depth, shape, boundary, internal echogenicity, hyperechoic spots, lateral acoustic shadow, posterior echoic patterns, mushroom signs, and straw‐hat signs. Each image was evaluated by two physicians independently, and the consistency was tested.

Results

Eleven lesions could not be detected by HF‐US. The rest 74 lesions underwent ultrasonic analysis. MN appeared as strip‐shaped or oval, hypoechoic areas localized in the epidermis and dermis under ultrasonography. A strong consistency between HF‐US and dermoscopy of determining the lesion depth was achieved (κ = 0.935, p < 0.001). The hyperechoic spots were found in 57.6% intradermal nevi. The mushroom signs were seen in 34.8% intradermal nevi, and the straw‐hat signs were seen in all the compound nevi.

Conclusion

MN can be correctly classified using HF‐US, and it had a strong correlation with dermoscopic and clinical classification. HF‐US could further reveal the internal morphological features of MN, which may support more precise classification and management.
Improving Medical Image Decision‐Making by Leveraging Metacognitive Processes and Representational Similarity
Authors: Hasan Eeshan , Eichbaum Quentin , Seegmiller Adam C. , Stratton Charles , Trueblood Jennifer S.
Published: December 2021

Improving the accuracy of medical image interpretation can improve the diagnosis of numerous diseases. We compared different approaches to aggregating repeated decisions about medical images to improve the accuracy of a single decision maker. We tested our algorithms on data from both novices (undergraduates) and experts (medical professionals). Participants viewed images of white blood cells and made decisions about whether the cells were cancerous or not. Each image was shown twice to the participants and their corresponding confidence judgments were collected. The maximum confidence slating (MCS) algorithm leverages metacognitive abilities to consider the more confident response in the pair of responses as the more accurate “final response” (Koriat, 2012), and it has previously been shown to improve accuracy on our task for both novices and experts (Hasan et al., 2021). We compared MCS to similarity‐based aggregation (SBA) algorithms where the responses made by the same participant on similar images are pooled together to generate the “final response.” We determined similarity by using two different neural networks where one of the networks had been trained on white blood cells and the other had not. We show that SBA improves performance for novices even when the neural network had no specific training on white blood cell images. Using an informative representation (i.e., network trained on white blood cells) allowed one to aggregate over more neighbors and further boosted the performance of novices. However, SBA failed to improve the performance for experts even with the informative representation. This difference in efficacy of the SBA suggests different decision mechanisms for novices and experts.
End of a mystery: Integrative approach reveals the phylogenetic position of an enigmatic Antarctic tardigrade genus Ramajendas (Tardigrada, Eutardigrada)
Authors: Tumanov Denis V.
Published: December 2021

Phylogenetic position of the enigmatic Antarctic tardigrade genus Ramajendas was clarified using specimens from King George Island, Antarctic. Molecular phylogenetic analysis revealed a close affinity of Ramajendas to the superfamily Isohypsibioidea. At the same time, its standalone position within this clade prompted the erection of a new family Ramajendidae fam. nov. A detailed morphological description of the available specimens is given, and the diagnosis of the genus Ramajendas is amended. Taxonomical status of several previous findings of Ramajendas spp. in West Antarctica is discussed.
Effect of Centrifugal Force on Gas Flow in a Supersonic Turbine
Authors: Kanda Takeshi , Nakai Akio , Inagaki Tatsuya , Asano Tatsuro , Ohkuma Yasutaka , Hamatsu Masayuki , Nakamura Katsuhiko
Published: December 2021

To clarify the loss mechanism in supersonic turbines, the authors experimentally and numerically studied the flow condition between the rotor blades of a supersonic turbine for liquid rocket engines. The entrance Mach number was 1.94, and the turning angle of the blades was 120 deg. Shock waves were created at the leading edge of the blade. The Mach number and total pressure decreased in the passage between the blades, where the flow condition was restricted by the centrifugal force. Such degradation, which has also been reported in past studies, is an inherent feature of high-speed, large-turning-angle blades. Here, it was found that a convergent–divergent configuration of the passage between the blades suppressed the performance degradation of the supersonic turbine.
Recent Advances in Wake Dynamics and Active Drag Reduction of Simple Automotive Bodies
Authors: Yu Zhou , Bingfu Zhang
Published: December 2021

This is a compendium of recent progresses in the development of wake dynamics and active drag reduction (DR) of three-dimensional (3D) simple automotive models, largely focused on the generic Ahmed body. It covers our new understanding of involved instabilities, predominant frequencies, pressure distribution, and unsteady flow structures in the high- (12.5 deg < φ < 30 deg) and low-drag (φ > 30 deg) bodies and the square-back body (φ = 0 deg), where φ is the rear slant angle of the body. Various DR methods and their performances are reviewed, including open- and closed-loop controls along with machine-learning control (MLC). The involving DR mechanisms, net saving, and efficiencies are discussed. Comments are made for the areas that deserve more attention and future investigation.
Optimizing Backrest Geometry to Minimize Interfacial Pressure Concentrations in the Mid-to-Lumbar Region During Leg Press Resistance Training
Authors: Castonguay-Siu Vincent , Taylor William R.
Published: December 2021

The leg press is a resistance training (RT) exercise common to both weight- and powerlifting, where spine-related injuries remain prevalent. Here, the elevated loading has the potential to result in increased pressure on vertebral bodies and introduce the risk of spinal injury. This study, therefore, investigates back interfacial pressure under leg press loading conditions and offers design recommendations to minimize spatial pressure concentrations. A pressure mat was used to assess the back-backrest interfacial pressure distribution of 15 subjects executing RT leg-presses at 50% body weight, over 16 different back-support geometries. Real-time forces, knee angles, and pressures were captured. The resulting data show that more prominent (≥2.1 cm) back-supports, positioned 19 cm above the seat pan typically produced greater peak pressures (41.8 ± 7.2 kPa). Conversely, less prominent supports (∼0.7 cm) generally achieved lower peak pressures (with greater distribution). Our data suggest that the most prudent choice for fixed-shape backrests to best distribute interfacial pressure on leg-press devices is to incorporate shallow convex supports (∼0.7 cm) and locate them away from P = 19 cm. The result is surprising as this prominence location is a common ergonomic feature. If an adjustable backrest is considered, peak pressures may be reduced by up to 26 ± 8% (9.7 ± 3.1 kPa) compared to flat geometries.
Co-Optimization of Velocity and Charge-Depletion for Plug-In Hybrid Electric Vehicles: Accounting for Acceleration and Jerk Constraints
Authors: Chen Di , Huang Mike , Stefanopoulou Anna G. , Kim Youngki
Published: December 2021

Recent advances in vehicle connectivity and automation technologies promote advanced control algorithms that co-optimize the longitudinal dynamics and powertrain operation of hybrid electric vehicles. Typically, a sequential optimization with the vehicle dynamics optimized followed by powertrain optimization is adopted to manage a number of complexities such as the inherent mixed-integer nature of the hybrid powertrain, the numerous state and control variables, the differing time scales of vehicle and powertrain subsystems, time-varying state constraints, and large horizon lengths. Instead, we solve the offline optimization problem in a centralize manner assuming exact knowledge of the lead vehicle's position over the entire trip by applying a discrete-time single shooting-based numerical approach, Discrete Mixed-Integer Shooting (DMIS), including a linearly increasing computational complexity to the problem horizon. In particular, the hierarchical problem structure is exploited to decompose the computationally intensive Hamiltonian minimization step into a set of low-dimensional optimizations. DMIS allows us to compute the direct fuel minimization problem including the vehicle and powertrain dynamics in a centralized manner to its full horizon while systematically tuning weighting factors that penalize passenger discomfort. For the first time, this study reveals that practically implemented sequential optimization exhibits similar fuel optimality as co-optimization when a certain level of passenger comfort is required.
Passivity-Based Output Feedback Control for Systems With Nonlinear Outputs Via High-Gain Observers
Authors: Lei Jing
Published: December 2021

In this paper, a high-gain observer with nonlinear output is designed. The scaled estimation error system is constructed with a passive function based on the nonlinear output function and a strictly positive real transfer function of boundary-layer system. The ultimate boundedness and exponential stability of the estimation error for the global and regional two cases are demonstrated, as long as high-gain observer's decay rate is fast enough. The extended results under passivity of the output function and strictly positive realness of the transfer function are presented. The performance recovery property of the output feedback using high-gain observer with nonlinear output is validated. Some examples are applied in the simulation to illustrate the proposed results in this paper.
Confined Cell Migration and Asymmetric Hydraulic Environments to Evaluate the Metastatic Potential of Cancer Cells
Authors: Juste-Lanas Yago , Guerrero Pedro Enrique , Camacho-Gómez Daniel , Hervás-Raluy Silvia , García-Aznar Jose M. , Gomez-Benito María J.
Published: December 2021

Metastasis, a hallmark of cancer development, is also the leading reason for most cancer-related deaths. Furthermore, cancer cells are highly adaptable to micro-environments and can migrate along pre-existing channel-like tracks of anatomical structures. However, more representative three-dimensional models are required to reproduce the heterogeneity of metastatic cell migration in vivo to further understand the metastasis mechanism and develop novel therapeutic strategies against it. Here, we designed and fabricated different microfluidic-based devices that recreate confined migration and diverse environments with asymmetric hydraulic resistances. Our results show different migratory potential between metastatic and nonmetastatic cancer cells in confined environments. Moreover, although nonmetastatic cells have not been tested against barotaxis due to their low migration capacity, metastatic cells present an enhanced preference to migrate through the lowest resistance path, being sensitive to barotaxis. This device, approaching the study of metastasis capability based on confined cell migration and barotactic cell decisions, may pave the way for the implementation of such technology to determine and screen the metastatic potential of certain cancer cells.
The Motion Formalism for Flexible Multibody Systems
Authors: Bauchau Olivier A. , Sonneville Valentin
Published: December 2021

This paper describes a finite element approach to the analysis of flexible multibody systems. It is based on the motion formalism that (1) uses configuration and motion to describe the kinematics of flexible multibody systems, (2) recognizes that these are members of the special Euclidean group thereby coupling their displacement and rotation components, and (3) resolves all tensors components in local frames. The goal of this review paper is not to provide an in-depth derivation of all the elements found in typical multibody codes but rather to demonstrate how the motion formalism (1) provides a theoretical framework that unifies the formulation of all structural elements, (2) leads to governing equations of motion that are objective, intrinsic, and present a reduced order of nonlinearity, (3) improves the efficiency of the solution process, and (4) prevents the occurrence of singularities.
Effect of Turbulence on Forced Ignition of Jet-A/Air Mixtures
Authors: Teope Kaz I. , Blunck David L.
Published: December 2021

Consistent ignition of reactive mixtures in turbulent conditions continues to be a challenge, particularly for large, multicomponent fuels. Prior work has shown that turbulence can affect ignition parameters such as flame speed, mixture temperature, and minimum ignition energy (MIE). However, these works have primarily considered small, single-component fuels. This work studies the effect of turbulence on forced ignition of jet-A/air mixtures with φ between 0.3 and 0.7. The ignition probability of these mixtures was measured for bulk velocities between 5 and 7 m/s and turbulence intensities between 3% and 9%. A FLIR SC6700 infrared camera was used to measure the radiation intensity emitted by the flame kernels. Increases in turbulence intensity between 3% and 4% cause the probability of ignition to generally increase. This increase is attributed to the negative flame stretch that develops as a result of the turbulence. This observation is significant because it shows that turbulence can facilitate ignition for jet-A/air mixtures. In contrast, increasing turbulence beyond 5% causes ignition probabilities to decrease. This reduction occurs due to the increased role of heat diffusion and the associated reduction in kernel temperature. The sensitivities of ignition behavior to turbulence intensity and fuel chemistry are reasonably captured using the Peclet number. Further agreement in ignition behavior is achieved by considering Pe/TI2. Ignition probability data for two additional fuels were compared using Pe/TI2. Reasonable agreement within a 95% confidence interval was observed for CH4 mixtures but not for C3H8 mixtures.
Experimental and Numerical Investigation of High-Temperature Multi-Axial Fatigue
Authors: Ramesh Babu Harish , Böcker Marco , Raddatz Mario , Henkel Sebastian , Biermann Horst , Gampe Uwe
Published: December 2021

Gas turbines and aircraft engines are dominated by cyclic operating modes with fatigue-related loads. This may result in the acceleration of damage development on the components. Critical components of turbine blades and disks are exposed to cyclic thermal and mechanical multi-axial fatigue. In this work, planar-biaxial low-cycle-fatigue (LCF) tests are conducted using cruciform specimens at different test temperatures. The influence on the deformation and lifetime behavior of the nickel-base disk alloy Inconel 718 is investigated at selected cyclic proportional loading cases, namely, shear and equi-biaxial. The calculation of the stress and strain distribution of the cruciform specimens from the experimental data is difficult to obtain due to complex geometry and temperature gradients. Therefore, there is a need for finite element (FE) Simulations. A viscoplastic material model is considered to simulate the material behavior subjected to uniaxial and the selected planar-biaxial loading conditions. At first, uniaxial simulation results are compared with the uniaxial experiment results for both batches of IN718. Then, the same material parameters are used for simulating the biaxial loading cases. The prediction of FE simulation results is in good agreement with the experimental LCF test for both shear and equi-biaxial loadings. The equivalent stress amplitude results of the biaxial simulation are compared with the uniaxial results. Furthermore, the lifetime is calculated based on the stabilized cycle from the simulation and by using Crossland and Sines multi-axial stress-based approaches. The Crossland model predicts fatigue life significantly better than the Sines model. Finally, the simulated lifetime results are compared with the experimental lifetime.
Hyperbolically symmetric sources in Palatini f(R) gravity
Authors: Bhatti M. Z. , Yousaf Z. , Tariq Z.
Published: December 2021

A thorough examination of static hyperbolically symmetric matter configuration in the context of Palatini f(R) gravitational theory has been carried out in this manuscript. Following the work of Herrera et al. (Phys. Rev. D 103: 024037, 2021) we worked out the modified gravitational equations and matching conditions using the Palatini technique of variation in Einstein–Hilbert action. It is found from the evaluations that the energy density along with the contribution of dark source terms is inevitably negative which is quite useful in explaining several quantum field effects, because negative energies are closely linked with the quantum field theory. Such negative energies may also assist in time-travel to the past and formation of artificial wormholes. Furthermore, we evaluated the algebraic expressions for the mass of interior hyperbolical geometry and total energy budget, i.e., the Tolman mass of the considered source. Also, the structure scalars are evaluated to analyze the properties of matter configuration. Few analytical techniques are also presented by considering several cases to exhibit the exact analytical static solutions of the modified gravitational equations.
Anesthesia in a Patient with Potocki–Lupski Syndrome
Authors: Kim Songhyun , Lim Yunhee , Jun In-Jung , Yoo Byunghoon , Kim Kye-Min
Published: December 2021

Introduction. Potocki–Lupski syndrome (PTLS) is a rare disease caused by the duplication of a small segment of chromosome 17 (17p11.2). The clinical presentation of this syndrome is quite variable and includes hypotonia, failure to thrive, oropharyngeal dysphagia, developmental delay, and behavioral abnormalities. In addition, congenital heart disease, sleep apnea, and mildly dysmorphic features are common and should be considered during anesthetic management. However, because of the rarity and newness of the syndrome, there are few reports on the anesthetic care of patients with PTLS. Case Report. We report a case of a 4-year-old girl diagnosed with this syndrome who underwent general anesthesia for exotropia surgery. The patient exhibited micrognathia; a mild decrease in muscle tone; and a developmental delay in motor, speech, and cognition. She had a history of swallowing incoordination and gastroesophageal reflux. No abnormalities were found on a preoperative echocardiography. A videolaryngoscope was used for tracheal intubation, and the state of neuromuscular blockade was monitored in addition to standard monitoring. Anesthesia was maintained with sevoflurane and remifentanil. The patient recovered without any adverse events. Conclusion. As PTLS patients may have several malformations, preanesthetic evaluation is important. Preoperative echocardiography and cardiologic consultations are required. It is desirable to prepare for the risk of difficult airway and pulmonary aspiration. Postoperatively, close monitoring is needed to prevent airway compromise.
Managing PVR in the Era of Small Gauge Surgery
Authors: Nagpal Manish , Juneja Rakesh , Talati Sham
Published: December 2021

Proliferative vitreoretinopathy (PVR) is the leading cause of failed rhegmatogenous retinal detachment (RRD) surgery. Based upon the presence of clinical features and due to associated underlying risk factors, it is classified into various grades based upon its severity and extent of involvement. Despite excellent skills, flawless techniques, and high-end technology applied in the management of RRD, PVR still occurs in 5–10% of cases. Due to the advancements in wide angle viewing systems, advance vitrectomy machines and fluidics, early identification, use of long-term heavy silicon oil tamponades, high-speed cutters, small-gauge vitrectomies, use of perfluorocarbon liquid (PFCL), and small-gauge forceps and scissors, the success rate in the management of PVR has increased leading to improved anatomical outcomes. However, functional outcomes do not correlate well with improved anatomical outcomes. Various complications occur after RRD repair that are responsible for re-retinal detachment and recurrence of PVR. This article highlights causes, risk factors, classification, grading, diagnosis, and approach to management of PVR and post-PVR surgery complications.
Revised classification of the New World Cylapini (Heteroptera: Miridae: Cylapinae): taxonomic review of the genera Cylapinus, Cylapoides and Peltidocylapus and a morphology-based phylogenetic analysis of tribe Cylapini
Authors: WOLSKI ANDRZEJ
Published: December 2021

Cylapini, as currently circumscribed, is a relatively small group of plant bugs currently comprising 17 genera and 65 species. Most representatives of the tribe are distributed in the New World (10 genera and 47 species) with other members occurring in the Afrotropical, Oriental, and Australian regions. They have primarily tropical and subtropical distributions with only a few members inhabiting temperate regions. This paper provides a taxonomic review of three of the New World Cylapini genera: Cylapinus Carvalho, 1986, Cylapoides Carvalho, 1952, and Peltidocylapus Poppius, 1909. Most species are diagnosed and redescribed. Eight new species are described as new: Cylapinus yasunagai sp. nov., Peltidocylapus calyciformis sp. nov., P. caudatus sp. nov., P. ecuadorensis sp. nov., P. pallidus sp. nov., P. parallelus sp. nov., P. simplex sp. nov., and P. spinosus sp. nov. Cylapus festinabundus Bergroth, 1922 is transferred to Peltidocylapus (comb. nov.). Illustrations of male genitalia, scanning electron micrographs of selected structures of certain species, and an identification key of the genera Cylapinus, Cylapoides and Peltidocylapus are provided. Female genitalia are described and illustrated for the first time for most genera of Cylapini. A cladistic analysis of the tribe based on 81 morphological characters is presented as a contribution to the understanding of the ingroup relationships of Cylapini and its relationships with other groups of Cylapinae. The analysis comprises 30 ingroup species and 15 outgroup species. Both equal- and implied weighting parsimony analyses were used in the phylogenetic reconstruction. This analysis was based solely on morphological characters because an insufficient number of specimens suitable for molecular studies were available for most taxa. The study confirmed a close affinity of the taxa currently included in Cylapini, but the tribe was rendered paraphyletic by inclusion of the tribe Vanniini. The grouping comprising both Cylapini + Vanniini and most of its subordinated clades received low nodal support. Both analyses recovered a decisively supported clade comprising the New World genera Amapacylapus, Cylapus, Peltidocylapus, and Valdasus which accommodate most of the Cylapini species, justifying the recognition of the Cylapus complex suggested by previous authors. The results presented here are discussed and compared with previous phylogenetic hypotheses based on different datasets.
Malacostraca Podophthalmata Britanniæ 1815–1875 by William Elford Leach and the history of its fragmented publication (Crustacea: Decapoda)
Authors: CLARK PAUL F. , HARRISON KEITH
Published: December 2021

The present study documents the fragmented publication history of Malacostraca Podophthalmata Britanniæ by William Elford Leach, illustrated with coloured figures of all the species by James Sowerby. This work was originally proposed to consist of 12 or 14 numbers. One number was to be published every two months between the years 1815 and 1818. Although this was increased to 19 numbers its publication by James Sowerby halted at number 17 in 1820. In that year Leach had a complete nervous breakdown and, although he eventually recovered, he was retired from his post at the British Museum in 1822. Although Leach was optimistic and set out plans to complete Malacostraca, he died from cholera in 1836 near Genoa, Italy, with the work unfinished. During the early 1870s fortuitous events occurred that would lead to the publication of numbers 18 and 19 and the completion of the work. At that time William Sowerby began negotiating with Bernard Quaritch, a London publisher, for disposal of old stock from the Sowerby publishing house including Malacostraca. George Brettingham Sowerby the younger, an established naturalist and highly skilled illustrator, proposed that the Malacostraca should be updated and he prepared Nos. 18 and 19 for publication. These last two volumes of Malacostraca were finally made available by Quaritch in November 1875. The authorship of Nos. 1–17 has never been in doubt and this is the work of Leach with illustrations by James Sowerby. Among the taxa illustrated in Nos. 18 & 19 however, are species which were not known to occur in British waters when Leach was working and as such the choice of Malacostraca illustrated in 1875 differed significantly from the original proposals. Consequently the 1875 supplement should therefore correctly be credited entirely to G.B. Sowerby II and cited as Sowerby, G.B. II in Leach, W.E. (1875). Finally, because copies of the Malacostraca are not generally available, all the magnificent plates illustrated by James Sowerby and George Sowerby II are reproduced here in full colour.
Enhanced Recovery After Surgery® in Octogenarians Undergoing Hepatopancreatobiliary Surgery
Authors: Robinson Jordan N. , Davis Joshua M. K. , Pickens Ryan C. , Cochran Allyson R. , King Lacey , Salibi Patrick , Iannitti David A. , Martinie John B. , Baker Erin H. , Ocuin Lee M. , Vrochides Dionisios
Published: December 2021

Advances in perioperative care have increased the frequency of surgical intervention performed on the very elderly (≥80 years). This study aims to investigate the impact of Enhanced Recovery After Surgery (ERAS) on outcomes for octogenarians after major hepatopancreatobiliary (HPB) surgery. Patients ≥80 years old in a single HPB ERAS program (September 2015-July 2018) were prospectively tracked in the ERAS Interactive Audit System (EIAS). Postoperative length of stay (LOS) as well as 30-day major complications, readmissions, and mortality were compared to a pre-ERAS octogenarian control. Since ERAS implementation, octogenarians comprised 7.3% (27 of 370) of patients who underwent pancreaticoduodenectomy (n=17), distal pancreatectomy (n=7), or hepatectomy (n=3). Thirty-day readmissions decreased after ERAS implementation (50% to 15%, P=.037). Thirty-day major complications, mortality, and LOS were similar with 64% median protocol compliance. ERAS for octogenarians in HPB surgery is safe and may contribute to more sustainable recovery resulting in reduced readmissions.
Opinions of Cancer Patients, Their Relatives, and Nurses on Good Death
Authors: Özyalçın Özcan Dilan , Çevik Banu
Published: December 2021

The study sample consists of participants as the patient, patient relatives, and nurse. In our study, a significant relationship was found between the ages of patients, and fear of death, avoidance of death, accepting approach, non-acceptance, and the DAP-R scale total score. A positive moderate correlation was found between the fear of death and death avoidance among my nurses who participated in the study. The nurse, the patient, and patient relatives had a good perception of death and had a higher attitude toward death. Additionally, that found to nurses’ fear of death and death avoidance behavior are higher than patients and their relatives.
Exploring an Extended Conception of Grief: Sense of Presence and Grief Reactions in German Widows
Authors: Wittkowski Joachim , Scheuchenpflug Rainer
Published: December 2021

This study explores sense of presence (SOP) as an important feature of continuing bonds (CB) in the context of normal grief. A community sample of widows ( N = 51) filled in a multidimensional grief questionnaire and a depression scale. A moderate positive association between sensing the deceased husband´s presence and cognitive and emotional impairments emerged. A positive relationship between SOP and guilt was found only if the influence of religiosity was controlled for statistically. There were no significant associations of SOP with long-lasting positive reactions to loss, such as personal growth and increase in sensitivity for others. Widows with clinically relevant depression indicated a stronger SOP than those with lower depression scores. These differentiated findings may stimulate the elaboration of an extended conception of grief beyond the focus on clinically relevant impairments
Exploring Mortality Salience and Pandemic Impact in the Context of COVID-19
Authors: Paul Disha , Vasudevan Moosath Harishankar
Published: December 2021

Mortality salience refers to a state of conscious awareness of death and the inevitable conclusion of life, associated with psychological terror. The COVID-19 pandemic generated increased awareness of illness and death, and effectuated changes in death cognitions and people’s experiences around psychological or sociocognitive domains of media and life goals. To understand these changes, this study administered the Multidimensional Mortality Awareness Measure (Levasseur et al., 2015) to 103 emerging adults in India, post which 6 participants proceeded for a semi-structured interview exploring pandemic experiences, news consumption and goal prioritization, to examine specific areas in relation to death cognition. The thematic analysis demonstrates psychological effects, and discusses developments in health and death-related psychological processes. Focus on career goals and health maintenance, cautious news consumption and disadvantageous impacts on mental health are seen, significant in navigating healthcare measures for emerging adults, as we move forward into this ‘new normal’.
Exploration of Knowledge, Attitude, and Practice Among Residents of Saudi Arabia Toward Hepatitis Viruses
Authors: Alotaibi Bashair S. , Althobaiti Maryam A. , Hazazi Amal Y. , Hazazi Sarah Y. , Nassir Rawan A. , Alhaddad Mahmoud S. , Abdelwahab Sayed F.
Published: December 2021

Background and aim: Data available in the Kingdom of Saudi Arabia (KSA) about public knowledge, attitude, and practice (KAP) toward viral hepatitis infection are scarce. Such information is essential for designing effective intervention strategies for the prevention and control of viral hepatitis. This study aimed to assess the knowledge, attitude, and practice among residents of KSA toward hepatitis viruses. Methods: A cross-sectional descriptive study was conducted among 549 participants in Saudi Arabia. An electronic questionnaire (in Arabic) was used to measure the KAP of the participants. Data were analyzed using SPSS version 23 at significance level of .05. Results: Most of the 549 participants were Saudi citizens (96%; n = 527) and 26.6% (n = 146) of them were males and mostly from the western Saudi Arabia (72.9%; n = 400). Most participants did not hear about hepatitis viruses and showed low level of knowledge on viral hepatitis (42%). On the other hand, a positive attitude was apparent from participants’ responses, and their practices were toward protecting their bodies from the infection. Conclusion: The level of knowledge about viral hepatitis was low (42%) among KSA residents, and the practice and attitude of the participants were toward avoiding the infection. Awareness campaigns are required to increase the public knowledge about viral hepatitis.
The Inefficient and Unjust Global Distribution of COVID-19 Vaccines: From a Perspective of Critical Global Justice
Authors: Li Zhehan , Lu Jiajun , Lv Jiamin
Published: December 2021

The coronavirus disease 2019 (COVID-19) pandemic has caused huge losses and massive damage to socio-economic development around the globe, which might even potentially evolve into a humanitarian crisis as it continues to spread. In response to the further resulting public threats, collaborative research, rapid production, and efficient and just distribution of vaccines have been given a top priority. However, there exists a serious inefficiency and injustice in the distribution of COVID-19 vaccines among different countries, regions, and social classes currently. Richer countries and regions have acquired far more vaccines than needed, further exacerbating the severity of the epidemic in underdeveloped and marginalized countries and regions. From a perspective of critical global justice, we explore the causes of the inefficient and unjust global distribution of vaccines and comprehensively examine the shortcomings of the current distribution frameworks, such as COVID-19 Vaccines Global Access Facility (COVAX). Then, under the framework of critical global justice, we propose a multi-phase fair priority model that improves the existing proportional distribution mechanism. This solution to the global injustice reoptimizes the cross-border and domestic vaccine distribution and aims to resolve the pandemic more efficiently. The proposed framework and methodology of vaccine distribution could be taken as an opportunity to consistently promote the development of the global socio-economic structure towards global justice more broadly and systematically.
Neither a Conscript Army nor an All-Volunteer Force: Emerging Recruiting Models
Authors: Ben-Ari Eyal , Rosman Elisheva , Shamir Eitan
Published: December 2021

This article develops an analytical model of force composition that combines the advantages of conscription with those of an all-volunteer force. Using Israel as a hypothesis-generating case study, it argues that mandatory military service has undergone changes centered on five key organizing principles: selective conscription, early discharges, elongated lengths of service, forms of voluntary service and differing pay-scales, and other material and non-material incentives for conscripts. These principles are “grafted” onto conscription creating a hybrid, “volunteer-ized” model. The utility of the theoretical model lies in explaining how these principles facilitate mobilizing a needed number or recruits, providing an adequate level of military expertise, as well as maintaining the legitimacy of the armed forces by meeting domestic social, economic, and political expectations about its composition and the use of personnel at its disposal. The system is adaptive and flexible, as shown through the comparisons throughout the paper.
Perceived Mother–Father Dyad Parenting Typologies Across Four Regions in the United States
Authors: Stearns Melanie , Szkody Erica , McKinney Cliff
Published: December 2021

Although much research has investigated parenting styles, few studies have examined parenting across regions of the United States. The current study used a nationwide sample to examine perceived maternal and paternal parenting in four regions of the United States: Northeast, South, Midwest, and West. Participants included 1080 emerging adults who answered questionnaires regarding their perceptions of maternal and paternal parenting styles using an online survey. In all regions, the largest profile indicated a parenting style of High Authoritative/Authoritarian and Moderate Permissive mothers and fathers. Similarly, all regions indicated profiles that were High or Very High Authoritarian mothers and fathers. All regions except the West had a profile with High Authoritative mothers and High or Very High Authoritarian fathers. The Northeast, South, and West also had unique profiles found only in those regions. Thus, results indicate similarities as well as distinct differences in parenting style across regions of the United States.
A Mixed Methods Study of Relationship Satisfaction in Parents of Children With Down Syndrome
Authors: Krueger Kristen , Alexander Paige , Dyster Meghan , Steele Robert , Nelson Goff Briana S. , Cless Jessica D. , Reves Mollie , Wedekind Morgan
Published: December 2021

Much of the research on parents of children with intellectual and developmental disabilities (IDD) has focused on the negative effects on the couple relationship. The current study contributes to the understanding of parental relationship satisfaction in a sample of parents of children with Down syndrome (DS), through a mixed methods study that included data from a large national sample. Parents of children with DS were divided into two groups based on high and low relationship satisfaction scores, with quantitative and qualitative data analyses comparing these two groups. Results indicated differences between high relationship satisfaction and low relationship satisfaction groups on measures of hope, life satisfaction, and coping scores. Qualitative results also indicated group differences. Future research and implications for professionals working with parents of children with DS and other IDD diagnoses should include understanding the unique factors that affect interpersonal functioning.
Rethinking d/Development
Authors: Mawdsley Emma , Taggart Jack
Published: December 2021

A dialectical relationship between ‘big D’ Development (broadly, the formal interventionist, international Development sector) and little ‘d’ development (the immanent structures and processes of capitalism) is a concept widely invoked in Geography and Development Studies. In this paper, we ask how the d/Development dialectic is evolving under current conjunctures of emergent state capitalism(s). We suggest that, going beyond ‘containment’, Development is ever more deeply inhabited by (capitalist) development; with implications for its palliative and restructuring roles, and for praxis, contestation and transformation.
Designing A Shorter Form of the Big Three Perfectionism Scale: An Application of Ant Colony Optimization
Authors: Kilmen Sevilay
Published: December 2021

The present study has two main purposes. The first is to create a short form of the BTPS and to evaluate the psychometric properties of the short form. The second is to evaluate the performance of the ant colony optimization procedure and discuss the applicability of the ant colony optimization procedure in creating a short form. Results revealed that the 30-item short form of the BTPS can be applied to psychological or educational assessment settings to obtain valid and reliable results related to ten different facets of perfectionism. The current study also showed that the ant colony optimization procedure can be used to create the best short form which has variance, reliability, and high factor correlations between original and short versions of a scale.
Mattering and Anti-Mattering in Emotion Regulation and Life Satisfaction: A Mediational Analysis of Stress and Distress During the COVID-19 Pandemic
Authors: Giangrasso Barbara , Casale Silvia , Fioravanti Giulia , Flett Gordon L. , Nepon Taryn
Published: December 2021

The current study focused primarily on the associations that feelings of not mattering have with life satisfaction, stress, and distress among students trying to cope with the uncertain and novel circumstances brought about by the COVID-19 pandemic. A sample of 350 University students from Italy completed measures that included the General Mattering Scale and the Anti-Mattering Scale, as well as measures of self-esteem, difficulties in emotion regulation, life satisfaction, perceived stress, anxiety, and depression. Psychometric analyses confirmed the factor structure, reliability, and validity of the General Mattering Scale and the Anti-Mattering Scale. As expected, feelings of not mattering were associated with lower life satisfaction as well as with greater reported difficulties in emotion regulation, stress, and distress. Mattering and self-esteem were both unique predictors of levels of life satisfaction during the pandemic. The results of mediational analyses suggested that individuals who feel as though they do not matter may be especially vulnerable to stress, depression, and anxiety and this may promote a decline in life satisfaction. Given the potential destructiveness of feelings of not mattering, in general but especially during a global pandemic, it is essential to proactively develop interventions and programs that are designed to enhance feelings of mattering and reduce anti-mattering experiences and feelings.
A Curation Activity-Based Self-Regulated Learning Promotion Approach as Scaffolding to Improving Learners’ Performance in STEM Courses
Authors: Wang Qi , Peng Yan , Wang Huimin
Published: December 2021

Self-regulated learning (SRL) is an important method in STEM courses that can help learners acquire knowledge by discovering, organizing, and integrating materials. However, learners may not perform well without scaffolding, which results in purely participation in tasks without solid knowledge acquisition. To guarantee SRL effectiveness, scaffolding that can support learners’ knowledge discovery, organization and integration is needed when curation is introduced to support high-level cognition in STEM courses focusing on these facets. The researchers analyzed the advantages and procedures of curation and developed a curation tool and a curation activity-based SRL mode. To verify the effects of the proposed tool and mode, 64 Grade 7 students were involved and assigned to the experimental and control groups and learned with specific tasks. The results revealed that the experimental group showed interest in the mode and achieved better learning outcomes. Learners in the experimental group also submitted higher-quality practical work that demonstrated the effectiveness of the mode. Moreover, this approach promoted deep thinking without increasing the learners’ cognitive load. Finally, this study provided an innovative scaffolding tool and mode for SRL that leveraged learners’ knowledge acquisition and task completion. This idea has positive implications for future SRL research.
Contextualizing the Experiences of Black Women Arrested for Intimate Partner Violence in Canada
Authors: Duhaney Patrina
Published: December 2021

This qualitative study was informed by critical race feminism and explored Black women’s experiences with the police with a particular focus on how issues of race, racism, oppression, and subordination inform their experiences. It sought to answer three research questions: (1) What is known about Black women’s experiences with the police in the context of intimate partner violence? (2) Given their experiences with the police, what is their perception of the police? and (3) To what extent do women construct counter-narratives of their experiences with the police and what does that involve? The sample was comprised of 25 participants, 15 of whom were arrested. The women were over the age of 18 and lived in the Greater Toronto Area and surrounding areas. Most women expressed that they had negative encounters with the police, which was influenced by the police’s negative perceptions of them. Black women who called the police to intervene in an intimate partner violence incident were subjected to great scrutiny and vulnerable to racialized and gendered police violence. Consequently, women were fearful and distrustful of the police and were less likely to seek help from them in the future. The study answers the call for research that examines Black women’s experiences with the police from their perspective. It has implications for social service providers and provides strategies to improve future police interactions with Black communities.