bluuebunny/crossref_metadata_2025 huggingface dataset:
A review of gall midges (Diptera: Cecidomyiidae) described from Mesozoic deposits

Authors: JASCHHOF MATHIAS
Published: February 2021

Twenty-four fossil gall midges (Cecidomyiidae) described from 1917–2020 from Mesozoic deposits, mostly ambers, are reviewed. Information from the original publications is used as the basis for reinterpretation, when such is regarded as appropriate here. As a result, the fossil record of cecidomyiids from the Mesozoic comprises representatives of the following subfamilies and tribes, all mycophagous (numbers in parentheses refer to species described): Catotrichinae (1); Micromyinae: Catochini (2), Amediini (1), Campylomyzini (1), Micromyini (2) and Aprionini (1); Winnertziinae: Heteropezini (2), Diallactiini (4) and Winnertziini (1); Porricondylinae: Dicerurini (1). Other Winnertziinae (3) and Micromyinae (5) cannot be classified to tribe because information on critical morphological structures is unavailable; they are thus considered incertae sedis. Members of the Lestremiinae sensu stricto are unrecorded from the Mesozoic, as are any Cecidomyiinae (the only subfamily containing phytophages and predators). Commonly occurring reasons for misinterpretation of amber fossils are the non-recognition of artefacts and the unfamiliarity with group-specific literature regarding prevailing taxonomic concepts and the morphological diversity found in Cecidomyiidae. These causes as well as obvious differences between neontological and paleontological taxonomic practices are discussed. Amediini trib. nov. Jaschhof, 2021 is introduced as a new tribe of the Micromyinae, to absorb the genera Amedia Jaschhof, 1997 (extant, North America, type genus), Amediella Jaschhof, 2003 (extant, New Zealand) and Eltxo Arillo & Nel, 2000 (extinct, Alava amber). A diagnosis of the new tribe is given. Krassiloviolini Fedotova & Perkovsky, 2017 is a new junior synonym of Heteropezini Schiner, 1868. Amediini Plakidas, 2017 and Zarqacecidomyius singularis Kaddumi, 2007 are nomina nuda.
Are wounded-tree beetles living fossils? A new nosodendrid genus from Burmese amber with bilobed tarsi (Coleoptera: Nosodendridae)

Authors: TIHELKA ERIK , LI YAN-DA , HUANG DI-YING , CAI CHEN-YANG
Published: February 2021

Nosodendridae, the wounded-tree beetles, are a small polyphagan family with less than 100 described species placed into two extant and one fossil genera. Here we describe a new nosodendrid genus and species, Mesonosa scandens gen. et sp. nov., from mid-Cretaceous Burmese amber from northern Myanmar (ca. 99 Ma). The new genus differs from extant nosodendrids in its bilobed tarsomeres 2–4, as well as putatively plesiomorphic characters such as strongly protuberant compound eyes and relatively elongate prosternum. The distinctly lobed tarsi are a unique feature within Nosodendridae, and likely represent an adaptation for climbing plants. The discovery of a third wounded-tree beetle genus from the Mesozoic indicates that while their body plan remained relatively conserved since the Cretaceous, nosodendrids have been more ecomorphologically diverse in the geological past than the present day, and thus are an example of a true “living fossil” lineage.
Supplement to the Burmese (Myanmar) amber checklist and bibliography, 2020

Authors: ROSS ANDREW J.
Published: February 2021

This is a supplement to the Burmese (Myanmar) amber checklist and bibliography covering taxa described or recorded during 2020, plus a few earlier records that were missed previously. Up to the end of 2020, 1,859 species were recorded from Kachin amber of which 362 were named in 2020, which is the highest number of species named from any kind of amber in one year. Two species were also named from older Hkamti amber.
Comparison of the recently described early Permian paoliid genus Permomertovia with the ‘eoblattid’ genera of the families Permulidae and Permotermopsidae

Authors: NEL ANDRÉ , POSCHMANN MARKUS J.
Published: February 2021

Poschmann & Nel (2020) recently described the genus and species Permomertovia simpliciradius from the early Permian of Germany and placed it in the order Paoliida and family Paoliidae sensu Prokop et al. (2014) because it shares the diagnostic characters and synapomorphies of this order and family. But they neglected to compare Permomertovia with the taxa placed in the small family Permulidae, and especially with its type genus and species Permula lebachensis (Schlechtendal, 1913; also from the early Permian of Germany (Steinbach near Lebach-Saar). We herein compare the two forewings, and also take this occasion to discuss the affinities of the Permulidae and of some other related Palaeozoic families of Polyneoptera.
Description of a new species of the genus Rhopalovalva Kuznetzov (Tortricidae, Olethreutinae) from Japan
Authors: NASU YOSHITSUGU
Published: February 2021

Rhopalovalva chidorinoki Nasu, sp. nov. is described from Japan, with the photographs of the adult and genitalia. The diagnostic characters of the new species are given with comparison with the allied species, R. exartemana (Kennel, 1901).
Dispersion of Smoke Plumes over South America
Authors: Jury Mark R. , Gaviria Pabón América R.
Published: February 2021

Satellite and reanalysis products are used to study the atmospheric environment, aerosols, and trace gases in smoke plumes over South America in the period 2000–18. Climatic conditions and fire density maps provide context to link biomass burning across the southern Amazon region (5°–15°S, 50°–70°W) to thick near-surface plumes of trace gases and fine aerosols. Intraseasonal weather patterns that underpin greater fire emissions in the dry season (July–October) are exacerbated by high pressure over a cool eastern Pacific Ocean, for example in September 2007. Smoke-plume dispersion simulated with HYSPLIT reveals a slowing of westward transport between sources in eastern Brazil and the Andes Mountains. During cases of thick smoke plumes over southern Amazon, an upper ridge and sinking motions confine trace gases and fine aerosols below 4 km. Long-term warming, which tends to coincide with the zone of biomass burning, is +0.03°C yr−1 in the air and +0.1°C yr−1 at the land surface. Our study suggests that weather conditions promoting fire emissions also tend to limit dispersion.
A Spatiotemporal Lightning Risk Assessment Using Lightning Mapping Data
Authors: Murphy Kelley M. , Bruning Eric C. , Schultz Christopher J. , Vanos Jennifer K.
Published: February 2021

A lightning risk assessment for application to human safety was created and applied in 10 west Texas locations from 2 May 2016 to 30 September 2016. The method combined spatial lightning mapping data, probabilistic risk calculation adapted from the International Electrotechnical Commission Standard 62305-2, and weighted average interpolation to produce risk magnitudes that were compared with tolerability thresholds to issue lightning warnings. These warnings were compared with warnings created for the same dataset using a more standard lightning safety approach that was based on National Lightning Detection Network (NLDN) total lightning within 5 n mi (1 n mi = 1.852 km) of each location. Four variations of the calculation as well as different units of risk were tested to find the optimal configuration to calculate risk to an isolated human outdoors. The best-performing risk configuration using risk (10 min)−1 or larger produced the most comparable results to the standard method, such as number of failures, average warning duration, and total time under warnings. This risk configuration produced fewer failures than the standard method but longer total time under warnings and higher false alarm ratios. Median lead times associated with the risk configuration were longer than the standard method for all units considered, whereas median down times were shorter for risk (10 min)−1 and risk (15 min)−1. Overall, the risk method provides a baseline framework to quantify the changing lightning hazard on the storm scale and could be a useful tool to aid in lightning decision support scenarios.
A Systematic Review of the Omohyoid Muscle Syndrome (OMS): Clinical Presentation, Diagnosis, and Treatment Options
Authors: Ong Jerome Zhiyi , Tham Alex Chengyao , Tan Jian Li
Published: February 2021

Objective:

Omohyoid muscle syndrome (OMS) is a condition that causes a X-shaped lateral neck lump on swallowing, caused by the failure of the central tendon of the omohyoid muscle to restrict movement of the muscle during swallowing. We aim to review the etiology, pathophysiology, diagnostic tests, and management options for this condition.

Data Sources:

Pubmed, MEDLINE, EMBASE, and Cochrane databases were searched for all articles and abstracts related to OMS up to 29th July 2020.

Review Methods:

A systematic review was performed, data extracted from relevant full text articles. Both quantitative data and qualitative data were analyzed.

Results:

Twenty cases of OMS were reported. Patients presented at a mean age of 36.0. All cases were Asian. There is a 7:3 ratio of males to females. The most common symptom was a transient neck mass. Most cases were managed conservatively with good prognosis. Open or endoscopic transection of the muscle and ultrasound-guided botulinum toxin injection were 3 treatment options, with no recurrence at 4 years, 6 months, and 6 months respectively.

Conclusion:

OMS could be genetic as all cases were Asian in ethnicity. The deep cervical fascia which usually envelopes the omohyoid muscle may be weakened by stress as 20% of cases had a preceding traumatic event. Real-time ultrasonography establishes the diagnosis, demonstrating the anterolateral displacement of the sternocleidomastoid muscle by a thickened omohyoid muscle during swallowing. Surgical transection can achieve cure, but due to limited studies available, they should be reserved for patients who are extremely bothered. Intramuscular injection of botulinum toxin is an effective alternative, but recurrence is expected.
A Qualitative Study of Developing Competency in Thyroid Surgery: A Resident’s Perspective With 5 Year Follow Up
Authors: DeVries Gabriela , Rudolph Megan , Reines Howard David , Zapanta Philip E.
Published: February 2021

Objectives:

The Accreditation Council for Graduate Medical Education has guidelines on assessing surgical qualifications based on experience. Attending surgeons have various assumptions on how their trainees learn and acquire surgical skills. This study primarily investigates the resident’s perspective on gaining experience and achieving competency in thyroid surgical procedures.

Methods:

A qualitative study using semi-structured interviews was designed to derive themes that discuss the acquisition of competency in thyroid surgery. After IRB approval, data was collected from 2012 to 2014 at 4 academic centers in the Washington, DC area. Fourteen chief residents specializing in either general surgery or otolaryngology were interviewed until saturation was achieved. These semi-structured interviews were transcribed and broken up into codes utilizing Moustakas’ analysis. A comprehensive list of master themes in regards to achieving competency in thyroid surgery was developed. A follow up survey of the surgeons was undertaken at 5 years to determine if the perceptions during residency persisted in practice.

Results:

Surgical specialty residents experience and learn thyroid surgery in 5 learning themes: 1. Self—directed learning is significant during residency. 2. Repetition with graduated autonomy is key. 3. Effective mentors are competent surgeons who challenge residents and use positive teaching techniques. 4. Residents employ active learning through the “see one, do one, teach one” philosophy. 5. Learning from complexity is of importance to residency training. After several years in practice, the most important theme in learning after residency was repetition of cases.

Conclusions:

This study demonstrates how residents progress in approaching competency in thyroid surgery. Adult learning strategies are preferred, and programs should incorporate tailored techniques to meet the individual needs of the residents. Perceptions of what is most important shifted in long-term follow up. Further study is needed to assure competency in residency and in practice.
A simplified virtual power system lab for distance learning and ABET accredited education systems
Authors: Mohamed Omar , Bitar Zain , Abu-Sultaneh Alla , Elhaija Wejdan Abu
Published: February 2021

COVID-19 pandemic has had an adverse impact on higher education worldwide. In particular, the situation can be more crucial for electrical power engineering education due to the importance of the direct relationship between the students and their instructor embodied in the campus’ classroom interaction and the requisite face-to-face learning. Apparently, e-learning instructional design has provided a fairly accepted solution through online lectures and exams for power engineering courses. Nevertheless, the difficulty persists in moving the experiment equipment of the laboratories to the homes of the students since most experiments were likely to be carried out on the University campus’ dedicated power system panels. An urgent and reduced cost solution is therefore needed. This paper introduces a shortcut design method as a compensatory solution at no extra cost, which during this challenging period is suitable for teaching power system labs and also suitable for full online education programs. The work presented in the paper goes beyond that to discuss the relevance to ABET student outcomes. Two experiments are presented in the PowerWorld Simulator environment with systematic steps to facilitate the expansion of the rest of the laboratory experiments. The method is based on the simulation of a textbook example and the verification of results from another textbook followed by a discussion of the relevant students' outcomes of ABET. The paper may be used as an educational guide for instructors in the following academic year in institutions that embrace distance learning programs.
Heart or Mind? The Impact of Power Distance Belief on the Persuasiveness of Cognitive Versus Affective Appeals in Education Marketing Messages
Authors: Tu Lingjiang Lora , Kwon JaeHwan , Gao Huachao
Published: February 2021

One of the greatest challenges in education marketing is designing effective marketing messages, especially when targeting consumers with different cultural backgrounds. This research examines the impact of power distance belief (PDB) on the persuasiveness of affective appeal versus cognitive appeal in education marketing messages. The authors theorize that low-PDB consumers tend to prefer education products presented with affective appeal because of their process learning mindset, which focuses on self-discovery and self-development. By contrast, high-PDB consumers tend to prefer education products presented with cognitive appeal because of their outcome learning mindset, which focuses on acquiring skills and social/economic gains relevant to such skills. These effects were supported by converging results from four experiments, a field study, and a content analysis across 37 countries using a wide range of education products and services. This research contributes to the literature on PDB, education, and cross-cultural consumer behavior and provides guidelines for global education marketers.
Happiness Begets Money: Emotion and Engagement in Live Streaming
Authors: Lin Yan , Yao Dai , Chen Xingyu
Published: February 2021

Live streaming offers an unprecedented opportunity for content creators (broadcasters) to deliver their content to consumers (viewers) in real time. In a live stream, viewers may send virtual gifts (tips) to the broadcaster and engage with likes and chats free of charge. These activities reflect viewers’ underlying emotion and are likely to be affected by the broadcaster’s emotion. This article examines the role of emotion in interactive and dynamic business settings such as live streaming. To account for the possibility that broadcaster emotion, viewer emotion, and viewer activities influence each other, the authors estimate a panel vector autoregression model on data at the minute level from 1,450 live streams. The results suggest that a happier broadcaster makes the audience happier and begets intensified viewer activities, in particular tips. In addition, broadcasters reciprocate viewer engagement with more smiles. Further analyses suggest that these effects are pronounced only after a live stream has been active for a while, and they manifest only in streams by broadcasters who have more experience, receive more tips, or are more popular in past live streams. These results help platforms and broadcasters optimize marketing interventions such as broadcaster emotion enhancement in live streaming and quantify the financial returns.
A Census Tract–Level Examination of Differences in Social Determinants of Health Among People With HIV, by Race/Ethnicity and Geography, United States and Puerto Rico, 2017
Authors: Johnson Lyons Shacara , Gant Zanetta , Jin Chan , Dailey André , Nwangwu-Ike Ndidi , Satcher Johnson Anna
Published: February 2021

Objective

Social and structural factors, referred to as social determinants of health (SDH), create pathways or barriers to equitable sexual health, and information on these factors can provide critical insight into rates of diseases such as HIV. Our objectives were to describe and identify differences, by race/ethnicity and geography, in SDH among adults with HIV.

Methods

We conducted an ecological study to explore SDH among people with HIV diagnosed in 2017, by race/ethnicity and geography, at the census-tract level in the United States and Puerto Rico. We defined the least favorable SDH as the following: low income (<$40 000 in median annual household income), low levels of education (≥18% of residents have <high school diploma), high levels of poverty (≥19% of residents live below the federal poverty level), unemployment (≥6% of residents in the workface do not have a job), lack of health insurance (≥16% of residents lack health insurance), and vacant housing (≥15% of housing units are vacant).

Results

HIV diagnosis rates increased 1.4 to 4.0 times among men and 1.5 to 5.5 times among women as census-tract poverty levels increased, education levels decreased, income decreased, unemployment increased, lack of health insurance increased, and vacant housing increased. Among racial/ethnic groups by region and SDH, we observed higher HIV diagnosis rates per 100 000 population among non-Hispanic Black (49.6) and non-Hispanic White (6.5) adults in the South and among Hispanic/Latino (27.4) adults in the Northeast than in other regions. We observed higher HIV diagnosis rates per 100 000 population among non-Hispanic Black (44.3) and Hispanic/Latino (21.1) adults than among non-Hispanic White (5.1) adults.

Conclusion

Our findings highlight the importance of SDH in HIV infection and support the need for effective, targeted local interventions to specific populations based on HIV diagnoses and prevalence to prevent infection and reduce racial/ethnic disparities.
A New Geometric Model of Laid-in Weft-Knitted Fabrics
Authors: Fong Ki Wai , Li Si Qing , Liu Rong
Published: February 2021

Inlay yarn and laid-in structures are important technical knitting elements that have been increasingly applied in the structural design of functional textiles in industrial, medical, and wearable electronics fields. However, there is no currently established geometric model to numerically analyze their spatial morphologies and structural properties. This study presents a new geometric model and numerical analysis approach to characterize spatial configurations of inlay yarn and ground yarn in a three-dimensional scenario for laid-in weft-knitted fabrics. Loop lengths of the inlay and ground yarn materials were calculated and analyzed under different contact and deformation conditions to estimate material consumption in this complex interlooping layout. Series of laid-in weft-knitted fabrics made of different combinations of ground and inlay yarns were fabricated with the 1 × 1 laid-in loop pattern and tested for the model validation. The comparisons between the experimental and calculated results indicated that the newly developed geometric model favorably agreed with the experimental measurements regarding the ground loop lengths and inlay loop lengths applied in the laid-in weft-knitted structures. The results indicated the applicability of the developed geometric model of laid-in weft-knitted fabrics with similar structural patterns in practical use. The output of this study provides a theoretical and practical reference for structural and physical properties analysis, material consumption prediction, even cost estimation of laid-in weft-knitted fabrics.
Early Adverse Childhood Experiences and Self-Control Development among Youth in Fragile Families
Authors: Jones Melissa S. , Pierce Hayley , Chapple Constance L.
Published: February 2021

Though considerable research links both a lack of self-control and adverse childhood experiences (ACEs) to a variety of negative health and behavioral outcomes, few studies to date have explored whether ACEs are associated with deficits in self-control. Using data from the Fragile Families and Child Wellbeing Study (FFCW; n = 3,444) and a life course theoretical framework, this study aims to address this gap in the literature by examining the relationships between individual ACEs, cumulative ACEs, timing of ACEs, and durations of early ACEs and self-control development among youth. Our results indicate that as the number of ACEs (by age 5) experienced incrementally increases, the likelihood of reported self-control decreases. Moreover, when it comes to the timing and duration of ACE exposure, ACEs that are high but late, intermittent, or chronically high significantly decrease self-control. Based on our findings, researchers should continue to explore the role of ACEs in youth self-control development.
Support vector machine and its difficulties from control field of view
Authors: Yalsavar Maryam , Karimaghaei Paknoosh , Sheikh-Akbari Akbar , Shukla Pancham , Setoodeh Peyman
Published: February 2021

The application of the support vector machine (SVM) classification algorithm to large-scale datasets is limited due to its use of a large number of support vectors and dependency of its performance on its kernel parameter. In this paper, SVM is redefined as a control system and iterative learning control (ILC) method is used to optimize SVM’s kernel parameter. The ILC technique first defines an error equation and then iteratively updates the kernel function and its regularization parameter using the training error and the previous state of the system. The closed loop structure of the proposed algorithm increases the robustness of the technique to uncertainty and improves its convergence speed. Experimental results were generated using nine standard benchmark datasets covering a wide range of applications. Experimental results show that the proposed method generates superior or very competitive results in term of accuracy than those of classical and state-of-the-art SVM based techniques while using a significantly smaller number of support vectors.
The Role of Parental Style and Self-efficacy as Predictors of Internet Addiction among Israeli-Palestinian College Students in Israel
Authors: Agbaria Qutaiba , Bdier Dana
Published: February 2021

Prior studies have suggested the importance of individual characteristics among youths (e.g., self-efficacy) and parents (e.g., parenting style) that may mediate the risk of the youth engaging in compulsive, addictive behaviors like Internet addiction (IA). The current work was the first to examine the associations of IA with self-efficacy and parenting styles among a unique sample of Muslim college students in Israel. Participants ( n = 500) reported on their symptoms of IA, self-efficacy, and their parents’ parenting practices. Consistent with the study hypotheses, authoritative parenting style and self-efficacy were correlated with fewer symptoms of IA ( r = −0.34, p < 0.01; r = −0.49, p < 0.01, respectively), whereas permissive and authoritarian parenting styles were correlated with elevated indicators of IA ( r = 0.41, p < 0.01; r = 0.46, p < 0.01, respectively). These findings are consistent with previous literature in Western samples, suggesting the cross-cultural importance of these personal attributes for reducing the risk of addictive Internet use.
Pulmonary mucormycosis causing a mycotic pulmonary artery aneurysm
Authors: Saldanha Richard , Ghatanatti Ravi , Gan Mohan D , Kurkure Kiran , Suresh Gautam , Dhorigol Vijayalaxmi M
Published: February 2021

Mycotic pulmonary artery aneurysms requiring pneumonectomy are extremely rare. We present a severely breathless immunocompromised diabetic middle-aged female patient. CT pulmonary angiogram revealed a giant pulmonary artery aneurysm with impending rupture in the right lung. We did an emergency right pneumonectomy under cardiopulmonary bypass support. Histopathology report of the lung specimen confirmed mucormycosis. She received amphotericin B after the procedure. The patient had a prolonged postoperative hospital stay and succumbed to sepsis. Mycotic pulmonary artery aneurysm portends very high morbidity and mortality in immunocompromised patients.
Women’s Attempts Related to Complementary and Alternative Medicine Use in Infertility Causes and Diagnosis: A Narrative Inquiry
Authors: Azimi-Nezhad Mohsen , Sistani Malihe Noori , Vahedian-Shahroodi Mohammad
Published: February 2021

In most cultures of the world, infertility is seen as a disaster and is associated with a myriad of emotional and psychological problems for women. Using Complementary and alternative medicine (CAM) can help treat infertility. The present qualitative study aimed to explore women’s attempts related to CAM use in infertility causes and diagnosis. This qualitative study has been carried out through a purposive sampling technique on 78 women living in Neyshabur, Iran. An individual interview and focus group discussions (FGDs) was used to collect data. Purposive sampling was used based on the objective of the study and the characteristics of a population. The data collection was discontinued when saturation occurred, and no new themes or information were explored in the data. Data analysis was performed by content analysis and Atlas T software. This study revealed medical diagnosis and traditional medicine, custom activity, medicine causes, and nutrition issues influence women’s view pints and attempt towards infertility and CAM use. Results suggested that infertility should be understood not only in biomedical terms but in light of cultural beliefs and the contingent need for culturally-appropriate supportive CAM. The application of CAM along with medical medicine is an essential element in assisting couples in infertility causes.
MRI only in a patient with prostate cancer with bilateral metal hip prostheses: case study
Authors: Felisi Marco , Monti Angelo Filippo , Lizio Domenico , Nici Stefania , Pellegrini Roberto Giuseppe , Riga Stefano , Bortolato Barbara , Brambilla Maria Grazia , Carbonini Claudia , Abujami Mohammed , Carsana Chiara , Sibio Daniela , Potente Carmelina , Vanzulli Angelo , Palazzi Mauro Filippo , Torresin Alberto
Published: February 2021

Objective:

To outline a practical method of performing prostate cancer radiotherapy in patients with bilateral metal hip prostheses with the standard resources available in a modern general hospital. The proposed workflow is based exclusively on magnetic resonance imaging (MRI) to avoid computed tomography (CT) artifacts.

Case description:

This study concerns a 73-year-old man with bilateral hip prostheses with an elevated risk prostate cancer. Magnetic resonance images with assigned electron densities were used for planning purposes, generating a synthetic CT (sCT). Imaging acquisition was performed with an optimized Dixon sequence on a 1.5T MRI scanner. The images were contoured by autosegmentation software, based on an MRI database of 20 patients. The sCT was generated assigning averaged electron densities to each contour. Two volumetric modulated arc therapy plans, a complete arc and a partial one, where the beam entrances through the prostheses were avoided for about 50° on both sides, were compared. The feasibility of matching daily cone beam CT (CBCT) with MRI reference images was also tested by visual evaluations of different radiation oncologists.

Conclusions:

The use of magnetic resonance images improved accuracy in targets and organs at risk (OARs) contouring. The complete arc plan was chosen because of 10% lower mean and maximum doses to prostheses with the same planning target volume coverage and OAR sparing. The image quality of the match between performed CBCTs and MRI was considered acceptable. The proposed method seems promising to improve radiotherapy treatments for this complex category of patients.
Mental health and demographic correlates of loneliness after left ventricular assist device implantation
Authors: Griffin Sarah C , Eshera Yasmine M , Burker Eileen J
Published: February 2021

Loneliness is a risk factor for coronary heart disease, stroke, and hospital readmission, yet there are no studies to our knowledge examining loneliness in left ventricular assistance device (LVAD) patients. This study used a cross-sectional survey design on a convenience sample of LVAD patients ( n = 73). Logistic regression was used to identify demographic correlates of loneliness; linear regression was used to examine the relationship between loneliness and both stress and depression. Loneliness was measured via the loneliness item from the Center for Epidemiologic Studies Depression (CESD), depression via the CESD (excluding the loneliness item), and stress via the Perceived Stress Scale. In bivariate analyses, older age (OR per year = 0.958, 95%CI = 0.919–0.998) and being partnered (OR = 0.245, 95%CI = 0.083–0.724) were associated with less loneliness. In the multivariate model, there was an interaction effect between age and partnership ( p = 0.0212), where older age was protective against loneliness for non-partnered, but not partnered, patients. Higher loneliness was associated with higher stress (β = 0.484, B = 5.687, 95%CI = 3.195–8.178) and depression (β = 0.618, B = 7.544, 95%CI = 5.241–9.848). Patients who are not partnered and younger may be at increased risk of loneliness after LVAD. Loneliness in turn is associated with higher stress and depression. Longitudinal research is necessary to speak to direction of effects.
Investigating the Relationship Between Information Literacy and Social Media Competence Among University Students
Authors: Zhu Sha , Yang Harrison Hao , Wu Di , Chen Feixiong
Published: February 2021

Although the current landscape in education emphasizes the importance of developing students’ information literacy in formal education settings, little attention has been paid to information literacy within the context of social media use. This study investigated the relationship between information literacy and social media competence (SMC) among 1843 university students. This was done in order to increase knowledge of the components that may be important for preparing university students to be information literate citizens in social media environments. Students’ information literacy and SMC were measured by the Student Information Literacy Test and the SMC-CS scale respectively. Correlation and regression analyses were utilized to explore the relationship between university students’ information literacy and their SMC. The results showed that university students’ ability to utilize information technology to solve problems, and their sense of responsible behavior in cyberspace, are the most critical factors in predicting students’ SMC. Based on the findings, theoretical and practical implications are discussed in terms of enhancing university students’ information literacy and SMC.
Psychological Stress and Lowered Physical Activity Enjoyment in Adolescents With Overweight/Obesity
Authors: Ajibewa Tiwaloluwa A. , Beemer Lexie R. , Sonneville Kendrin R. , Miller Alison L. , Toledo-Corral Claudia , Robinson Leah E. , Hasson Rebecca E.
Published: February 2021

Purpose:

The purpose of this study was 2-fold: 1) to determine the cross-sectional associations between psychological stress, physical activity enjoyment, and physical activity participation [moderate-to-vigorous physical activity (MVPA), total physical activity (TPA)]; and 2) to determine the moderating effect of physical activity enjoyment on the associations between stress, MVPA, and TPA in adolescents with overweight/obesity.

Design:

Cross-sectional, secondary data analysis of the Health and Culture Project and the Stress, Obesity, and Diabetes in Adolescents study.

Sample:

One hundred and ten adolescents (73% female; 65.4% non-white; age 15.8 ± 1.9 years) with overweight/obesity (BMI percentile ≥ 85th percentile) were included in this analysis.

Measures:

Psychological stress was assessed using the Perceived Stress Scale (PSS-14); enjoyment was measured via the Physical Activity Enjoyment Scale; and MVPA and TPA were objectively measured using accelerometry over a minimum of 4 days.

Results:

Higher perceived stress was associated with lower physical activity enjoyment (β = −0.41 ± 0.15; p = 0.008). Stress was not associated with MVPA or TPA ( ps > 0.05), nor was enjoyment a significant moderator in the associations between stress and MVPA or stress and TPA ( pinteraction > 0.05).

Conclusions:

These findings suggest that psychological stress is associated with lower physical activity enjoyment among adolescents with overweight/obesity. Longitudinal studies are needed to understand the long-term effects of stress on psychological factors that may serve as antecedents to physical activity participation among adolescents with overweight/obesity.
Smoking exposure in pack-years predicts cutaneous manifestations and damage in systemic lupus erythematosus
Authors: Ezeh Nnenna , McKown Trevor , Garg Shivani , Bartels Christie M
Published: February 2021

Objective

To examine the impact of cumulative smoking in pack-years on systemic lupus erythematosus (SLE) cutaneous manifestations and damage.

Methods

Our cohort study included 632 adult SLE patients at an academic center, meeting 1997 ACR or 2012 SLICC classification criteria. Outcomes were: (1) cutaneous SLICC Damage Index (SDI), (2) ACR and SLICC criteria. Smoking exposure was defined as low (<5 pack-years), medium (5–10), and high (>10), compared to non-smokers. Analysis used multivariable logistic regression to calculate odds ratios and confidence intervals (OR, (95% CI)).

Results

Among 632 SLE patients, mean age 42 ± 14, 91% were female, 82% White, and 40% were ever smokers. Black patients were more likely to have smoked (51% vs. 41% White, 11% Other). Chronic SLICC and SDI cutaneous criteria showed linear pack-year trends, meeting significance with high smoking exposure (OR 2.2, (1.2, 4.2); OR 4.2, (1.9, 9.2)). Those with medium exposure were more likely to meet acute SLICC cutaneous criteria (OR 2.3, (1.1, 5.1)). Low exposure predicted any cutaneous SLICC and ACR criteria (OR 3.7, (1.3, 10.6); OR 2.0 (1.03, 3.8)). Patients of color had more chronic SLICC cutaneous criteria (Other Race OR 3.6 (1.6, 8.1)) and SDI skin damage (Black OR 2.6 (1.1, 5.9)) even controlling for smoking exposure.

Conclusions

Smoking was an independent risk factor for cutaneous SLE. High pack-year exposure and non-White race increased chronic skin manifestations and SDI damage. Findings suggested a dose relationship between smoking and cutaneous SLE damage, making cessation messaging important to potentially improve outcomes and reduce some disparities.
Digital Inclusion: Its Impact and Parents Perspective in Education Sector
Authors: Kaur Amandeep
Published: February 2021

Novel COVID-19 has turned the whole world upside down. Each industry is showing a downward trend. At the same time, digitalization, which got its birth in 2015, got its growth and is having a paradigm shift. Experts have given it a new name ‘digital inclusion’. This article studies the impact of online education imparted to children during the pandemic period through various applications.
Design and investigation of a novel magnetorheological brake with coils directly placed on side housings using a separating thin wall
Authors: Nguyen Ngoc Diep , Nguyen Tan Tien , Le Dai Hiep , Nguyen Quoc Hung
Published: February 2021

This research focuses on a new design to facilitate the manufacturing and improve performance of magneto-rheological brake (MRB). In this proposed MRB, the coils are directly placed on inner part of the side housing of the MRB and separated with the working MR fluid by a thin wall. The coils are then covered by the outer part of side housing to form a closed magnetic circuit. With this configuration, the coils do not directly contact with the MRF therefore a very small MRF gap size can be archived. In addition, the coils can be assembled and disassembled in the housing without separating the inner parts of the housing out of the disc. This makes a lot of convenience in fabrication, testing and maintenance of the MRB. After a review of MRB development, configuration of the proposed MRB is presented. Braking torque of the proposed MRB is then derived based on Bingham-plastic rheological model of MRF. Based on finite element analysis, optimal design of the proposed MRB is then conducted. The results are then compared with other types of MRB to figure out the advanced performance characteristics of the proposed one. In order to validate simulated results, prototypes of the proposed MRBs are manufactured and experimental works are then conducted.
Validation and Adaptation of the Brief Self-Control Scale With Spanish Adolescents: Factorial Structure and Evidences of Reliability, Validity, and Factor Invariance Across Gender and Age
Authors: Rodríguez-Menchón Miriam , Morales Alexandra , Orgilés Mireia , Espada José P.
Published: February 2021

During adolescence, the difficulty to control impulses is especially notable. The Brief Self-Control Scale has been used in different countries for years to study associations between self-control and other variables. However, its factor structure is not completely clear, and it is necessary to have a scale with psychometric assurances that evaluates self-control in adolescents. The aim of this study was to examine the factorial structure of the Brief Self-Control Scale and to provide evidences of reliability, validity, and factor invariance across gender and age in a sample of Spanish adolescents. Participants were 693 adolescents from Southeastern Spain, aged 13 to 18 years. Data supported an excellent fit to a two-dimensional model and evidences of reliability, validity and factor invariance across gender and age were obtained. This study provides new data on the two-dimensionality of self-control. The need of this tool becomes increasingly relevant to the susceptibility of new emerging addictions, such as mobile phones or internet.
Order-statistic filtering Fourier decomposition and its application to rolling bearing fault diagnosis
Authors: Huang Siqi , Zheng Jinde , Pan Haiyang , Tong Jinyu
Published: February 2021

Inspired by the empirical wavelet transform method, a newly nonstationary signal analysis method–termed order-statistic filtering Fourier decomposition is proposed in this article. First, order-statistic filtering Fourier decomposition uses order-statistic filtering and smoothing to preprocess the Fourier spectrum of original signal, which resolves the problem of unreasonable boundaries obtained by empirical wavelet transform in segmenting the Fourier spectrum. Then, the mono-components with physical significance are obtained by adaptively reconstructing the coefficient of fast Fourier transform in each interval, which improves the problem of too many false components obtained by Fourier decomposition method. The order-statistic filtering Fourier decomposition method is compared with the existing nonstationary signal decomposition methods including empirical mode decomposition, empirical wavelet transform, Fourier decomposition method, and variational mode decomposition through analyzing simulation signals, and the result indicates that order-statistic filtering Fourier decomposition is much more accurate and reasonable in obtaining mono-components. After that, the order-statistic filtering Fourier decomposition method is compared with the mentioned methods in diagnostic accuracy through analyzing the tested faulty bearing vibration signals and the effectiveness of order-statistic filtering Fourier decomposition to the comparative methods in bearing fault identification are verified.
Optimal Timing for Launching Installation of Tiers 2 and 3 Systems of School-Wide Positive Behavioral Interventions and Supports
Authors: Kittelman Angus , Mercer Sterett H. , McIntosh Kent , Hoselton Robert
Published: February 2021

The purpose of this longitudinal study was to examine patterns in implementation of Tiers 2 and 3 school-wide positive behavioral interventions and supports (SWPBIS) systems to identify timings of installation that led to higher implementation of advanced tiers. Extant data from 776 schools in 27 states reporting on the first 3 years of Tier 2 implementation and 359 schools in 23 states reporting on the first year of Tier 3 implementation were analyzed. Using structural equation modeling, we found that higher Tier 1 implementation predicted subsequent Tier 2 and Tier 3 implementation. In addition, waiting 2 or 3 years after initial Tier 1 implementation to launch Tier 2 systems predicted higher initial Tier 2 implementation (compared with implementing the next year). Finally, we found that launching Tier 3 systems after Tier 2 systems, compared with launching both tiers simultaneously, predicted higher Tier 2 implementation in the second and third year, so long as Tier 3 systems were launched within 3 years of Tier 2 systems. These findings provide empirical guidance for when to launch Tiers 2 and 3 systems; however, we emphasize that delays in launching advanced systems should not equate to delays in more intensive supports for students.
‘This gave me a Mastodong’: A decolonial analysis of the Black twerking dancers in Mastodon The Motherload music video
Authors: Santos Silva Melina Aparecida dos , Medeiros Beatriz
Published: February 2021

The article presents a decolonial and intersectional approach to production and reception of The Motherload music video (2014) in the context of heavy metal culture and how female Black bodies are displayed in media culture. We discuss the feminist dichotomic approach on the objectification of female bodies and the defence of Black female empowerment in the performances recorded. Our debate focuses on racial and sexual hierarchies in the metal music scene and in The Motherload music video, using the female Black body as a means of gaining visibility and adherence to this scene where women are often sexually objectified in its social dynamics.
“Bodies not templates”: Contesting dominant algorithmic imaginaries
Authors: Kazansky Becky , Milan Stefania
Published: February 2021

Through an array of technological solutions and awareness-raising initiatives, civil society mobilizes against an onslaught of surveillance threats. What alternative values, practices, and tactics emerge from the grassroots which point toward other ways of being in the datafied society? Conversing with critical data studies, science and technology studies, and surveillance studies, this article looks at how dominant imaginaries of datafication are reconfigured and responded to by groups of people dealing directly with their harms and risks. Building on practitioner interviews and participant observation in digital rights events and surveying projects intervening in three critical technological issues of our time—the challenges of digitally secure computing, the Internet of Things, and the threat of widespread facial recognition—this article investigates social justice activists, human rights defenders, and progressive technologists as they try to flip dominant algorithmic imaginaries. In so doing, the article contributes to our understanding of how individuals and social groups make sense of the challenges of datafication from the bottom-up.
Divergent Thinking in Survival Processing: Did Our Ancestors Benefit From Creative Thinking?
Authors: Altarriba Jeanette , Avery Mary C.
Published: February 2021

The survival processing advantage is a robust mnemonic device in which information processed for its relevance to one’s survival is subsequently better remembered. Research indicates that elaborative processing may be a key component underlying this memory effect, and that this mechanism resembles divergent thinking, whereby words with a greater number of creative uses in a given scenario are better remembered. If this particular function underpins adaptive memory, then individual differences in creativity may play a part in the degree to which people benefit from this advantage. We expected that highly creative individuals who engage more in divergent thinking would not necessarily benefit to a greater degree than less creative individuals, due to potential redundant processing. In this between-subjects experiment, participants rated words according to their relevance to the typical grasslands survival scenario or according to their pleasantness (a control common to the survival paradigm and known to enhance memory). While we did find a main effect of both condition (survival v. pleasantness) and creativity (high v. low), there was no interaction. This set of findings suggests that creative individuals may not benefit to a greater degree in survival processing, despite their ability to think divergently.
Training College Students to Use Learning Strategies: A Framework and Pilot Course
Authors: McDaniel Mark A. , Einstein Gilles O. , Een Emily
Published: February 2021

The use of effective study strategies is important for academic achievement, yet research indicates that students often use relatively ineffective learning strategies. Though potent strategies to promote durable learning exist, there is a lack of theoretical and empirical work on how to train students to self-regulate use of these strategies successfully. We summarize a novel framework to do so: the knowledge, belief, commitment, and planning ( KBCP) framework. The assumptions are that learners must develop knowledge about a strategy and how to use it, believe that the strategy is effective for the individual learner, commit to the strategy, and create an action plan for carrying it out. We then describe an example of the KBCP framework as applied to a college course on teaching students effective learning strategies and self-regulation of these strategies in their college coursework. Lectures on specific learning strategies conveyed knowledge about the strategies, in-class demonstrations illustrated their efficacy (to support belief), and assignments required students to develop a plan for applying them to their courses and to implement the plan (to ensure commitment). Discussion focuses on the implications of including training in how to use learning strategies in psychology courses and curricula, and on the possible extension of such training to the teaching of other psychology content.
Perceived marketization in Poland: Translating key concepts of institutional anomie theory to the micro level
Authors: Bieliński Jacek , Hövermann Andreas
Published: February 2021

Institutional anomie theory (IAT) describes the potentially criminogenic impact of economically dominated social institutions. Although originally cast at the macro level of society, more efforts have emerged lately to capture the IAT framework on the individual level, resulting in a need for appropriate measures representing the presumed marketization processes. Our study addresses this need by offering a theoretically derived, comprehensive measure of the individual-level instantiation of an anomic culture depicted in IAT, that is, ‘marketized mentality’. Structural equation models testing for the single higher-order factor marketized mentality are calculated with a representative random sample of Poland’s population. Finally, the implications and limitations resulting from the analyses are discussed.