bluuebunny/crossref_metadata_2025 huggingface dataset:
A risk-informed decision support tool for the strategic asset management of railway track infrastructure
Authors: Sasidharan Manu , Burrow Michael Peter Nicholas , Ghataora Gurmel Singh , Marathu Rishi
Published: August 2021

The provision of safe, efficient, reliable and affordable railway transport requires the railway track infrastructure to be maintained to an appropriate condition. Given the constrained budgets under which the infrastructure is managed, maintenance needs to be predicted in advance of track failure, prioritized and identified risks and uncertainties need to be considered within the decision-making process. This paper describes a risk-informed approach that can be used to economically justify railway track infrastructure conditions by comparing on a life-cycle basis infrastructure maintenance costs, train operating costs, travel time costs, safety, social and environmental impacts. The approach represents a step-change for the railway industry as it will enable economic maintenance standards to be derived which considers the needs of the infrastructure operator, but also those of users, train operating companies and the environment. Further, the risk-informed capability of the tool enables asset managers to deal with uncertainties associated with forecasting costs and the effects of track maintenance, and unavailability of data. The Monte Carlo simulation technique and a Fuzzy reasoning approach are used to address safety data uncertainties through probabilistic risk assessment allied to expert opinion. The approach is illustrated using data from three routes on the UK mainline railway network. The results demonstrate that the approach can be used to support strategic and tactical levels of railway asset management to inform plausible design and maintenance strategies that realise the maximum benefit for the available budget.
Evaporation and combustion of n-heptane droplets in supersonic combustor
Authors: Tahsini Amir Mahdi , Nabavi Seyed Saeid
Published: August 2021

The purpose of the present study is to investigate the combustion of the n-heptane droplet cloud in the supersonic combustor. The finite volume solver is developed to simulate the two-phase reacting compressible flow using single step reaction mechanism as finite rate chemistry. The focus is on the impacts of droplet size and cloud density on the performance of the scramjet. For the considered physical situation, the upper limit of the droplet size is determined to have higher combustion efficiency, and it is shown that the combustion mode is kinetic-controlled for small sizes and is evaporation-controlled for large droplet sizes. The variation of combustor’s exit total pressure and temperature is also investigated for different droplet cloud densities, demonstrating their apparent opposite behavior that must be considered to get optimum propulsion efficiency. In addition, it is illustrated that thermal choking is another criterion which should be avoided by controlling the fuel mass flow rate for intended flight conditions.
Is there a grid-connected effect of grid infrastructure on renewable energy generation? Evidence from China's upgrading transmission lines
Authors: Wang Yongpei , Xu Chao , Yuan Pinghong
Published: August 2021

China has built the world's largest power infrastructure. Those upgrading power grid facilities not only contribute to providing enough end-used energy for the world's factories, but also offering a basic guarantee for the clean strategy of Building a Beautiful China proposed by the Chinese government. The national grid system supported by extra-high voltage and ultra-high voltage grids as the backbone makes it possible for a non-dispatchable renewable energy source to be connected to the national grid and transmitted to terminal consumers in load centers. The aim of this paper is to test whether China's advanced power grids have played a positive role in promoting power generation of intermittent renewable energy source. A novel nonlinear estimation named panel smoothing transition regression is introduced to capture heterogeneous effects of grid-connecting renewable energy source across regions. The empirical results show that whereas power grid infrastructure generally enhances power generation of renewable energy source and consumption in energy bases and load centers, the effects change across different voltage levels of power grids. The extra-high voltage power grids show strong support for grid-connecting renewable energy source, while the effect of ultra-high voltage power grids is unexpectedly insignificant. The extra-high voltage power grids have not yet become the backbone of the national grid, which is the main reason for the inadequate grid-connected renewable energy source to the ultra-high voltage power grids, indicating the importance of upgrading the power grid infrastructure.
Application of graph theory in the library domain—Building a faceted framework based on a literature review
Authors: Lüschow Andreas
Published: August 2021

Based on a literature review, we present a framework for structuring the application of graph theory in the library domain. Our goal is to provide both researchers and libraries with a standard tool to classify scientific work, at the same time allowing for the identification of previously underrepresented areas where future research might be productive. To achieve this, we compile graph theoretical approaches from the literature to consolidate the components of our framework on a solid basis. The extendable framework consists of multiple facets grouped into five categories whose elements can be arbitrarily combined. Libraries can benefit from these facets by using them as a point of reference for the (meta)data they offer. Further work on formally defining the framework’s categories as well as on integration of other graph-related research areas not discussed in this article (e.g. knowledge graphs) would be desirable and helpful in the future.
A great inspiration for today's vaccination efforts: Biographical sketch of Francisco Xavier Balmis (1753–1819)
Authors: Andrade Gabriel E
Published: August 2021

The management of the coronavirus pandemic required huge worldwide vaccination efforts. In this endeavour, healthcare workers faced the twofold challenge of reaching remote areas, and persuading people to take the vaccine. As it happens, this is nothing new in the history of medicine. Health workers may indeed continue to take inspiration from Francisco Xavier Balmis, a Spanish physician of the 19th century who realised the importance of Jenner's vaccine against smallpox, and led a successful expedition to administer the vaccines in the Spanish colonial possessions of the Western hemisphere and Asia. This article presents a biographical sketch of Balmis, focusing on his expedition.
Tort conflicts rules in cross-border multi-party litigation: Which law has a closer or the closest connection?
Authors: Chen Zhen
Published: August 2021

This article compares Owen v. Galgey under Article 4 Rome II Regulation and YANG Shuying v. British Carnival Cruise under Article 44 Chinese Conflicts Act in the context of cross-border multi-party litigation on tort liability. The questions raised in these two cases include how to interpret the tort conflicts rules of lex loci delicti, lex domicilii communis and the closer/closest connection test when determining the applicable law. In particular, as regards the meaning of lex loci delicti, the notion of ‘damage’, the common habitual residence of the parties and the criteria to determine the closer/closest connection, different interpretations were provided in these two cases. In order to clarify certain ambiguity of tortious applicable law rules in cross-border multi-party litigation, a comparative study of Chinese and European tort conflicts rules is conducted. This article does not intend to reach a conclusion as to which law is better between the Rome II Regulation and the Chinese Conflicts Act, but rather highlights a common challenge faced by both Chinese courts and English courts in the field of international tortious litigation on personal injury and how to tackle such challenge in an efficient way under current legislation.
Developing 21st-Century Musicianship: Tablet-based Music Production in the General Music Classroom
Authors: Fick Jason , Bulgren Chris
Published: August 2021

Increased availability of tablets at home and in classrooms provides educators access to a powerful tool for music instruction. Music production lessons on tablets offer alternate approaches to developing music literacies while teaching valuable technology skills. These activities are ideal for general music education because they align with contemporary music practices and are adaptable to a variety of learning environments (in person, remote, and hybrid). This article will present a model for tablet-based music production instruction in the general music classroom that aligns with the National Core Arts Standards and accompanying process components grounded in five essential skills: sequencing, recording, editing, effects processing, and mixing.
Roleplay as an Educational Strategy in Palliative Care: A Systematic Integrative Review
Authors: Novaes Lucas Mariano Santos , Paiva Eliza Mara das Chagas , O’Mahony Aoife , Garcia Ana Cláudia Mesquita
Published: August 2021

Introduction:

Simulation activities, such as roleplay, have become established in undergraduate and graduate education in several subjects of healthcare. The objective of this study was to synthesize the evidence available in the literature on the use of roleplay as an educational strategy in palliative care.

Methods:

Using the method proposed by Whittemore and Knafl, this integrative systematic review was carried out based on the following guiding question: “What is the available evidence in the literature on the use of roleplay as an educational strategy in the teaching of palliative care?” The databases used for the selection of articles were the following: Web of Science, Scopus, Cochrane Library, PubMed, CINAHL, EMBASE, and LILACS. There were no limitations regarding the year of publication or language.

Results:

The articles (n = 34) were grouped into 3 categories, according to the purpose of roleplay use: 1) Use of roleplay as an educational strategy to teach communication in palliative care; 2) Use of roleplay as an educational strategy to teach the communication of bad news, and 3) Use of roleplay as an educational strategy to teach end-of-life care.

Conclusion:

Roleplay has been employed in the teaching of palliative care in order to develop skills related to communication and to the provision of end-of-life care. These educational activities have mainly been directed to healthcare students and professionals. Future investigations should further evaluate the efficacy of this teaching strategy, based on studies with more robust designs that allow the establishment of cause-and-effect relationships.
Lessons Learned From a Pilot Project on Telemedicine Advance Care Planning in an Urban Geriatric Primary Care Office
Authors: Seecof Olivia M. , Allanoff Molly , Liantonio John , Parks Susan
Published: August 2021

Purpose:

There is a dearth of literature regarding the documentation of advance care planning (ACP) in the geriatric population, despite the controversial, yet well-studied need for ACP. The purpose of this pilot study was to provide an update to a prior study from our institution that outlined the need for increased documentation of advance care planning (ACP) in an urban geriatric population.

Methods:

Our study involved using telemedicine to conduct dedicated ACP visits and an electronic medical record (EMR) note-template specifically designed for these visits in an attempt to increase the amount of documented ACP in the EMR in this population.

Results:

The study did not yield significant results due to the inability to schedule enough patients for these dedicated visits.

Discussion:

While our study was ultimately unsuccessful, 3 crucial lessons were identified that will inform and fuel future interventions by the authors to further the study of documentation of ACP.
The Relationship Between Brain Fog and Medication Adherence for Individuals With Hypothyroidism
Authors: Haskard-Zolnierek Kelly , Wilson Courtney , Pruin Julia , Deason Rebecca , Howard Krista
Published: August 2021

Individuals with hypothyroidism suffer from symptoms including impairments to cognition (i.e., “brain fog”). Medication can help reduce symptoms of hypothyroidism; however, brain fog may hinder adherence. The aim of this study was to determine if memory impairment and cognitive failures are related to treatment nonadherence in 441 individuals with hypothyroidism. Participants with a diagnosis of hypothyroidism and currently prescribed a thyroid hormone replacement medication were placed in two groups according to adherence level and compared on validated scales assessing impairments to memory and cognition. Results indicated a significant association between treatment nonadherence and self-reported brain fog, represented by greater cognitive and memory impairments. Nonadherent individuals indicated impairments with prospective, retrospective, and short- and long-term memory; and more cognitive failures, compared to adherent individuals. Findings suggest the importance of interventions to enhance adherence for individuals with brain fog, such as encouraging the use of reminders.
Testing the Effects of Two Field-to-Fork Programs on the Nutritional Outcomes of Elementary School Students From Diverse and Lower-Income Communities
Authors: Hartson Kimberly R. , King Kristi M. , O’Neal Carol , Brown Aishia A. , Olajuyigbe Toluwanimi , Elmore Shakeyrah , Perez Angelique
Published: August 2021

The purpose of this quasi-experimental study was to evaluate the effects of two farm-to-school programs, specifically the Field-to-Fork Multi-visit Program ( N  =  264) and the Field-to-Fork After-school Club ( N  =  56), on nutritional outcomes of elementary school students (third to fifth grade) from urban, diverse, and lower-income communities. Data were collected via self-report surveys measuring: (a) knowledge of recommendations for daily fruit and vegetable intake; (b) fruit and vegetable consumption; (c) knowledge of cooking a healthy recipe using vegetables; and (d) desire for farm fresh foods at school. Statistical analyses included McNemar’s and Wilcoxon signed rank tests. The proportion of students knowing how to cook a vegetable rich recipe increased with both programs (Multi-visit Program p < .001; After-school Club p  =  .002). Vegetable consumption increased with the After-school Club ( p  =  .002). Farm-to-school programming can increase knowledge of cooking vegetable rich recipes and vegetable intake among elementary school students from diverse, urban, and lower-income communities.
The Role of Religion in Long-distance Marriage as Experienced by Malaysian Muslim Husbands
Authors: Sumari Melati , Baharudin Dini Farhana , Mashkor Mohd Izuddin , Yahya Amira Najiha , Aman Nurul Syuhaida
Published: August 2021

Due to the challenges of globalization, more and more married couples in Malaysia are involved in long-distance relationships. Despite this trend, few studies have documented the experience and impact of long-distance marital relationships on husband or the role of religion in helping Muslim husbands cope with the stresses of separation. Therefore, this study explores the religious beliefs and practices of five Muslim husbands in long-distance marriages. The three main themes that emerged from qualitative analysis are (a) religious belief and commitment to marriage, (b) religious belief as a coping strategy, and (c) religious practices as a coping strategy. This study's findings indicate that specific beliefs and practices are related to how husbands approach their marriages. Findings clearly show that religion continues to be significant in many Muslim marriages, especially in this era of employment mobility. This study also supports previous studies that show positive correlations between salient aspects of faith and family life. This finding highlights the importance of Islamic-based counseling interventions incorporating scientific and revealed knowledge that could support Muslim clients.
Papillary Breast Tumors: Continuing Controversies and Commentary on WHO's 2019 Criteria and Classification
Authors: Patel Ami , Hoda Raza S. , Hoda Syed A.
Published: August 2021

The category of papillary breast tumors includes a limited number of entities. Nonetheless, this relatively uncommon group of tumors seems to instigate a disproportionate degree of diagnostic disquiet. As a group, papillary breast tumors suffer from a relatively high rate of discordant interpretation. The latter is due to the inherent complexity of the lesions compounded by conflicting criteria as well as simmering controversies. For instance, “encapsulated” papillary carcinoma remains contentious with regards to whether these are noninvasive or not, and the assessment of the extent of the invasive versus noninvasive components in many solid papillary carcinomas can be problematic. The latest classification system of breast tumors enunciated by the World Health Organization (WHO), that is, Breast Tumors, which appeared in 2019, mainly sought to incorporate advances in basic and clinical sciences into diagnostic criteria for the entire spectrum of breast neoplasms—including papillary ones. The latter category of tumors is discussed at some length in Breast Tumors; however, it still appears to suffer from some lack of clarity in its subclassification. It is our intent in this communication to provide an overview of the controversies around papillary breast tumors, and offer comments on its coverage in Breast Tumors—so that any tangible or perceived ambiguities therein could be addressed in its next edition.
Biomechanical Evaluation of Tarsometatarsal Fusion Comparing Crossing Lag Screws and Lag Screw With Locking Plate
Authors: Ettinger Sarah , Hemmersbach Lisa-Christin , Schwarze Michael , Stukenborg-Colsman Christina , Yao Daiwei , Plaass Christian , Claassen Leif
Published: August 2021

Background:

Tarsometatarsal (TMT) arthrodesis is a common operative procedure for end-stage arthritis of the TMT joints. To date, there is no consensus on the best fixation technique for TMT arthrodesis and which joints should be included.

Methods:

Thirty fresh-frozen feet were divided into one group (15 feet) in which TMT joints I-III were fused with a lag screw and locking plate and a second group (15 feet) in which TMT joints I-III were fused with 2 crossing lag screws. The arthrodesis was performed stepwise with evaluation of mobility between the metatarsal and cuneiform bones after every application or removal of a lag screw or locking plate.

Results:

Isolated lag-screw arthrodesis of the TMT I-III joints led to significantly increased stability in every joint ( P < .05). Additional application of a locking plate caused further stability in every TMT joint ( P < .05). An additional crossed lag screw did not significantly increase rigidity of the TMT II and III joints ( P > .05). An IM screw did not influence the stability of the fused TMT joints. For TMT III arthrodesis, lag-screw and locking plate constructs were superior to crossed lag-screw fixation ( P < .05). TMT I fusion does not support stability after TMT II and III arthrodesis.

Conclusion:

Each fixation technique provided sufficient stabilization of the TMT joints. Use of a lag screw plus locking plate might be superior to crossed screw fixation. An additional TMT I and/or III arthrodesis did not increase stability of an isolated TMT II arthrodesis.

Clinical Relevance:

We report the first biomechanical evaluation of TMT I-III arthrodesis. Our results may help surgeons to choose among osteosynthesis techniques and which joints to include in performing arthrodesis of TMT I-III joints.
First-Ray Radiographic Changes After Flexible Adult Acquired Flatfoot Deformity Correction
Authors: Wang Chien-Shun , Tzeng Yun-Hsuan , Yang Tzu-Cheng , Lin Chun-Cheng , Chang Ming-Chau , Chiang Chao-Ching
Published: August 2021

Background:

Adult acquired flatfoot deformity (AAFD) and hallux valgus (HV) are common foot and ankle deformities. Few studies have reported the changes in radiographic parameters of HV after reconstructive surgery for AAFD. This study aimed to evaluate the changes in radiographic parameters of HV and analyze the risk factors for increased HV after correction of AAFD.

Methods:

Adult patients with flexible AAFD who underwent similar bony procedures including medializing calcaneal osteotomy and Cotton osteotomy were included. Radiographic parameters were measured on weightbearing radiographs preoperatively, postoperatively, and at the final follow-up. Patients were divided into hallux valgus angle (HVA) increased and HVA nonincreased groups; logistic regression analysis was performed to identify risk factors affecting increased HV.

Results:

Forty-six feet of 43 patients were included. After AAFD reconstructive surgery, the tibial sesamoid position improved by 1 grade, but the HVA increased 4 degrees in average. Further, 21 of 46 feet (46%) showed an HVA increase ≥5 degrees immediately after AAFD correction surgery. Preoperative talonavicular coverage angle <21.6 degrees was a risk factor associated with HV increase immediately after the surgery.

Conclusion:

In this case series, using plain radiographs to measure standard parameters of foot alignment, we found the association between AAFD correction and HV deformity measures somewhat paradoxical. Correction of overpronation of the hindfoot and midfoot appears to improve the first metatarsal rotational deformity but may also increase HVA. A lower preoperative talonavicular coverage angle was associated with an increase of the HVA after surgery.

Level of Evidence:

Level IV, case series study.
Psychometric Analysis of the Dating Anxiety Scale for Adolescents in Samples of Polish and U.S. Young Adults: Examining the Factor Structure, Measurement Invariance, Item Functioning, and Convergent Validity
Authors: Adamczyk Katarzyna , Morelli Nicholas M. , Segrin Chris , Jiao Jian , Park Jung Yeon , Villodas Miguel T.
Published: August 2021

This study explored whether the Dating Anxiety Scale for Adolescents (DAS-A), which was originally developed in the United States to assess dating anxiety in adolescents, is appropriate for use in samples of young adults from Poland and the United States. The factor structure, measurement invariance across country, gender and relationship status, degree of precision across latent levels of the DAS and the functioning of individual items, and convergent validity were examined in a sample of 309 Polish and 405 U.S. young adults. The confirmatory factor analysis (CFA) supported the original three-factor measurement model of the DAS. Invariance tests revealed factor loadings and item thresholds that differed across subgroups, supporting partial metric and partial scalar invariance. The MIRT analysis showed that all items adequately discriminated participants with low and high anxiety. Dating anxiety latent factor correlations with mental health and interpersonal competence were significant in the expected negative directions. The results call for careful interpretation of research involving the DAS in cultural, gender, and relationship status groups, particularly when the primary goal is to compare mean levels of dating anxiety. Further development of the scale is recommended before it can be used across country, gender, and relationship status groups.
Diagnostic Value of Inflammatory Factors in Patients with Gallbladder Cancer, Dysplasia, and Cholecystitis
Authors: Kucuk Sirin , Mızrak Soycan
Published: August 2021

Background

Involving pre-sampled patients with cholecystitis, dysplasia, and adenocarcinoma, the present study aimed to compare the neutrophil/lymphocyte (NLR), monocyte/lymphocyte (MLR), platelet/lymphocyte (PLR) ratios, and plateletcrit (PCT), mean platelet volume (MPV), and platelet distribution width (PDW) values and to determine their prognostic importance.

Methods

The present study involved 187 cholecystectomy specimens that were diagnosed as cholecystitis, dysplasia, and adenocarcinoma. Preoperative neutrophil, monocyte, lymphocyte, and platelet counts, NLR, MLR, and PLR ratios, and PCT, MPV, and PDW levels of the same patient groups were retrospectively recorded.

Results

In the present study, the cut-off values for dysplasia of NLR, PLR, and MLR were found as 1.61, 81.45, and .19, whereas those for cancer of NLR, PLR, and MLR were 2.65, 182.69, and .35, respectively. The NLR, PLR, and MLR values of the chronic cholecystitis and chronic calculous cholecystitis groups were statistically significantly lower than those of the chronic active calculous cholecystitis group ( P < .01). The NLR and MLR values of the non-cancer and non-dysplasia groups were statistically lower than those of the cancer and dysplasia groups ( P < .05).

Conclusion

According to the results of the present study, using additional imaging methods, acute-phase cholecystitis can be distinguished using preoperative neutrophil and monocyte counts, and NLR, PLR, and MLR cut-off values can be used to distinguish dysplasia, which is the antecedent of gallbladder cancer. It is thought that this might provide patients with an advantage in terms of early treatment and survival.
Cardioprotective and Vasoprotective Effects of Corticotropin-Releasing Hormone and Urocortins: Receptors and Signaling
Authors: Popov Sergey V. , Prokudina Ekaterina S. , Mukhomedzyanov Alexander V. , Naryzhnaya Natalia V. , Ma Huijie , Zurmanova Jitka M. , der Ven Peter F. M. van , Maslov Leonid N.
Published: August 2021

Despite the recent progress in research and therapy, cardiovascular diseases are still the most common cause of death worldwide, thus new approaches are still needed. The aim of this review is to highlight the cardioprotective potential of urocortins and corticotropin-releasing hormone (CRH) and their signaling. It has been documented that urocortins and CRH reduce ischemic and reperfusion (I/R) injury, prevent reperfusion ventricular tachycardia and fibrillation, and improve cardiac contractility during reperfusion. Urocortin-induced increase in cardiac tolerance to I/R depends mainly on the activation of corticotropin-releasing hormone receptor-2 (CRHR2) and its downstream pathways including tyrosine kinase Src, protein kinase A and C (PKA, PKCε) and extracellular signal-regulated kinase (ERK1/2). It was discussed the possibility of the involvement of interleukin-6, Janus kinase-2 and signal transducer and activator of transcription 3 (STAT3) and microRNAs in the cardioprotective effect of urocortins. Additionally, phospholipase-A2 inhibition, mitochondrial permeability transition pore (MPT-pore) blockade and suppression of apoptosis are involved in urocortin-elicited cardioprotection. Chronic administration of urocortin-2 prevents the development of postinfarction cardiac remodeling. Urocortin possesses vasoprotective and vasodilator effect; the former is mediated by PKC activation and prevents an impairment of endothelium-dependent coronary vasodilation after I/R in the isolated heart, while the latter includes both cAMP and cGMP signaling and its downstream targets. As CRHR2 is expressed by both cardiomyocytes and vascular endothelial cells. Urocortins mediate both endothelium-dependent and -independent relaxation of coronary arteries.
Adolescents’ Modern Media Use and Beliefs About Masculine Gender Roles and Norms
Authors: Scharrer Erica , Warren Stephen
Published: August 2021

In the current study, cultivation theory is used to examine associations among amount of time spent with television (including Netflix or other streaming services), video games, and YouTube and beliefs about masculine roles and norms within a diverse sample of 307 13- to 18-year-olds from the United States. Heavy users of television, video games, and YouTube outscored lighter users on endorsement of views of masculinity that favor emotional detachment, dominance, toughness, and/or avoidance of femininity among boys and girls in the sample. For boys only, heavy exposure to violence in favorite games also played a role.
Poems, Routes
Authors: Chawla Devika
Published: August 2021

In March 2020 when the pandemic began, I found myself walking and scribbling in my notebook around the hills, country roads, and backroads of the Appalachian college town where I live and work. In the absence of human presence, I turned my attention to the nonhuman and the inanimate. Ultimately, my scribbles about these things took poetic form. I present here four poems and some notes on their emergence. They are a voice for the “tiny thoughts” that can occur around profound change or simply in the every day. I share them as my miniscule experience of long and short pandemic days, weeks, and months.
“If I Don’t Allow Him to Have Sex With Me, Our Relationship Will Be Broken”: Rape, Sexual Coercion, and Sexual Compliance Within Marriage in Rural Cambodia
Authors: Farvid Panteá , Saing Rany
Published: August 2021

Rape, sexual coercion, and sexual compliance within marriage are major components of gender-based violence globally. This article examines a range of non-consensual sexual experiences within heterosexual marriage in Aoral and Thpong districts in Kampong Speu, Cambodia. Interviews were conducted with 11 married women and thematically analyzed from a critical realist and feminist perspective. Four categories of non-consensual sex were identified and analyzed (rape/forced sex, sexual coercion, sexual compliance, and internalized pressure). These are discussed in detail, alongside the need for educational efforts that disrupt traditional gender norms that create a context conducive to women’s non-consensual sex in Cambodia.
Tailoring First Aid Courses to Older Adults Participants
Authors: Dolenc Eva , Kolšek Marko , Slabe Damjan , Eržen Ivan
Published: August 2021

Relevant organizations emphasize the importance of first aid (FA) for older adults due to the increased risk of injuries and sudden illnesses in old age. Even though FA training guidelines have been developed, no program for an FA course adapted for the older adults has been formally adopted in Europe. This study’s objective is to identify older adults’ needs, beliefs, desires, advantages, and possible limitations in connection with FA. This qualitative study used semistructured interviews with 22 laypersons and retired health professionals older than 60 years old. The qualitative content analysis indicated that the major themes elicited by the older adults are motivation to participate in the FA training, older adults’ specific features as a resource or obstacle for participating in FA training, general suggestions, and content suggestions for FA training. Older adults are very differently motivated to participate in FA training due to the heterogeneity of their psychophysical abilities. They need and want to obtain additional knowledge from the field of FA and health protection for which any psychophysical limitations are not as relevant as when learning cardiopulmonary resuscitation. They want to learn how to recognize emergency situations and more about calling emergency services with the use of modern technology. In addition to cardiopulmonary resuscitation without rescue breaths, they also want to learn about topics related to the treatment of injuries. Those who had practiced FA in their work–life think that they can be a good source to transfer their knowledge to persons from their generation. While planning an FA training course, it has to be taken into consideration that older adults want a short course, adjusted to their varied psychophysical abilities. Due to the wide array of contents they want to learn, it would be reasonable to prepare a selection of different programs for short training courses.
Evaluation of macular and optic nerve head parameters in amblyopic eyes: An optical coherence tomography study
Authors: Guagliano Rosanna , Barillà Donatella , Bertone Chiara , Montescani Silvia , Verticchio Vercellin Alice C , Arpa Cristina , Tinelli Carmine , De Angelis Giovanni , Quaranta Luciano
Published: August 2021

Purpose:

To evaluate morphological differences in retinal nerve fibers layers (RNFL), optic nerve head (ONH), ganglion cell complex (GCC), and macular thickness between amblyopic and normal eyes from spectral domain optical coherence tomography (SD-OCT).

Methods:

Of 234 eyes of 117 children, four groups emerged: group A (162 eyes of 81 non-amblyopic subjects); group B (32 fellow eyes of 32 subjects with monolateral amblyopia); group C (32 amblyopic eyes of 32 subjects affected by monolateral amblyopia); group D (8 amblyopic eyes of 4 subjects with bilateral amblyopia). Patients underwent SD-OCT for ONH parameters, RNFL, GCC and macular thickness, retina map, and ONH scan quality index (SQI). Two-sided p values <0.05 were taken as statistically significant. (Analysis: STATA v.13).

Results:

Parameters with a significant difference between groups ( p < 0.005) with their Standard Deviation (SD) are presented: rim area, 2.08 (0.49) mm2 in group A and 1.76 (0.68) mm2 in group C; disk area, 2.43 (0.45) mm2 in group A and 2.02 (0.71) mm2 in group C; central macular thickness, 250.99 (19.74) µm in group A and 267.16 (23.52) µm in group C; nerve fiber ONH SQI, 62.82 (13.15) in group A, 51.26 (15.55) in group C, 48.29 (14.37) in group D; retina map SQI, 63.34 (10.34) in group A and 57.34 (9.84) in group C. For other parameters no significant difference was observed ( p > 0.005).

Conclusions:

Amblyopia may influence optic nerve morphology, central macular thickness, and OCT scan quality. RNFL and GCC are not affected by monolateral amblyopia.
Genome Plasticity by Insertion Sequences Learned From a Case of Radiation-Resistant Bacterium Deinococcus geothermalis
Authors: Lee Chanjae , Bae Min K , Choi Nakjun , Lee Su Jeong , Lee Sung-Jae
Published: August 2021

The genome of the radiation-resistant bacterium Deinococcus geothermalis contains 19 types of insertion sequences (ISs), including 93 total transposases (Tpases) in 73 full-length ISs from the main chromosome and 2 mega plasmids. In this study, 68 ISs from the D. geothermalis genome were extracted to implicate the earlier genome before its mutation by transposition of ISs. The total size of eliminated ISs from genome was 78.85 kb. From these in silico corrections of mutation by the ISs, we have become aware of some bioinformatics factualness as follows: (1) can reassemble the disrupted genes if the exact IS region was eliminated, (2) can configure the schematic clustering of major DDE type Tpases, (3) can determine IS integration order across multiple hot spots, and (4) can compare genetic relativeness by the partial synteny analysis between D. geothermalis and Deinococcus strain S9. Recently, we found that several IS elements actively transferred to other genomic sites under hydrogen peroxide-induced oxidative stress conditions, resulting in the inactivation of functional genes. Therefore, the single species genome’s mobilome study provides significant support to define bacterial genome plasticity and molecular evolution from past and present progressive transposition events.
Scaling hand-coded political texts to learn more about left-right policy content
Authors: Däubler Thomas , Benoit Kenneth
Published: August 2021

Manual annotation of the policy content of political texts forms the basis for one of the most widely used empirical measures in comparative politics: left-right policy positions. Bridging automated “text as data” approaches and qualitative content analysis, we apply statistical scaling to this data to learn more about the association of specific policy dimensions to the left-right super-dimension, in a way that minimizes ex ante assumptions about the substantive content of left-right policy. We apply a Bayesian negative binomial variant of Slapin and Proksch’s (2008) “wordfish” model to category counts from party manifestos coded by the Manifesto Project, providing a data-driven approach that offers new insights into the policy content of left and right. We demonstrate how this method also works with content not originally designed for measuring positions. In addition, we show how the approach can be extended to measure the policy content of two latent dimensions, with some categories contributing to both.
Beyond fans: The relational labor and communication practices of creators on Patreon
Authors: Bonifacio Ross , Hair Lee , Wohn Donghee Yvette
Published: August 2021

The digital patronage model provides content creators the opportunity to receive sustained financial support directly from their fans. Patreon is a popular digital patronage platform that represents a prime site for the study of creators’ relational labor with their fans. Through in-depth interviews with 21 Patreon creators, this study investigated different types of creator–patron relationships and the perceived benefits and challenges of carrying out relational labor. We found that creators construct a variety of relationships with patrons, ranging from purely transactional to intimately familial. Creators benefit from relational labor in that it encourages patrons to treat the creator as a person rather than a product, resulting in both financial and emotional support. However, creators face difficulties in maintaining appropriate relational boundaries with patrons, some of whom control a substantial part of a creator’s income.
Could cutting costs mean changing minds? Effects of local television news work routines on viewer attention, information-processing, and perceptions of story importance
Authors: Henderson Keren , Makana Chock T
Published: August 2021

Market-driven changes to local television news content can come with consequences to viewers in terms of understanding, remembering and subsequently deliberating about news information. This study focuses on the effects of television news packages on viewers with the understanding that ‘high-effort’ storytelling is not supported uniformly across stations. Using an experiment, this study compares the effects of high- and low-effort storytelling on viewers’ memories for story facts, reported emotional states and perceptions of the importance of stories to determine whether cost-cutting measures will have important consequences for the half of US adults who report relying regularly on local television news for their civic information and for the multi-platform audiences whose preferred content originates from traditional television news work routines.
Together we stand? Transnational solidarity in the EU in times of crises
Authors: Katsanidou Alexia , Reinl Ann-Kathrin , Eder Christina
Published: August 2021

After more than a decade of consecutive crises, the issue of transnational solidarity is becoming increasingly relevant for the European Union. This research note compares the current coronavirus disease-2019 crisis to previous ones and investigates the willingness of European Union citizens to show solidarity towards fellow member states. We test the influence of socio-political attitudes of citizens on solidarity preferences in three crisis scenarios. We analyse Greece and Germany as cases differently affected by the past decade's crises and cases that chose different crisis management strategies when facing the novel virus. Our findings indicate that solidarity is highest in a pandemic, while for all crisis scenarios it is higher in Greece than in Germany. Despite variations in the degree of solidarity associated relationships with socio-political attitudes remain consistent.
Essento insect food AG: How edible insects evolved from an infringement into a sustainable business model
Authors: Daub Claus-Heinrich , Gerhard Carole
Published: August 2021

This case tells the story of the start-up Essento, which develops, produces and markets insect-based foods, and the nascent sustainable entrepreneur behind the company. Essento contributed significantly to shaping the legal basis for the consumption of edible insects in Switzerland and rises to the challenge of creating an entirely new market and lacking customer acceptance.
Business incubator management and entrepreneur collaboration with R&D milieus: Does the regional context matter?
Authors: Aarstad Jarle , Jakobsen Stig-Erik , Foss Lene
Published: August 2021

We study whether business incubator management collaboration with R&D milieus affects incubated entrepreneurs to also collaborate with R&D milieus in different regional contexts. Empirically, we analyse 281 Norwegian entrepreneurs in 32 different business incubators. Incubator collaboration with R&D milieus increases entrepreneur collaboration with R&D milieus in sparsely but not densely populated regions. Also, education level increases collaboration with R&D milieus (plus investor milieus and international customers). Entrepreneur collaboration with R&D milieus is positively associated with market orientation and perceptual performance but tends to delay enterprise development.
Mitigating work interference with family by leveraging an entrepreneurial strategic posture
Authors: De Clercq Dirk , Kaciak Eugene , Thongpapanl Narongsak (Tek)
Published: August 2021

This article adds to entrepreneurship research by detailing the mediating role of work-related emotional exhaustion in the connection between the extent to which women entrepreneurs experience work interference with family—defined as the degree to which the quality of their personal lives is compromised by work demands—and the performance of their businesses. It also predicts a buffering role of the entrepreneurial strategic posture of their businesses in this process. Survey data collected among women entrepreneurs in Chile indicate that the depletion of entrepreneurs’ work-related energy resource reservoirs is an important reason that increasing levels of work interference with family diminish business performance. This mediating role of emotional exhaustion is less prominent when they run their businesses entrepreneurially, which might help them find innovative solutions for the negative spillovers of work stress into the family domain. This research therefore reveals a critical challenge for women entrepreneurs who suffer in their personal lives due to pressing work demands: the associated emotional drainage compromises the success of their business endeavors, which eventually can generate even more hardships. This study also shows how women entrepreneurs can address this challenge, that is, by drawing from the novel insights that arise from an entrepreneurial strategic posture.
The influence of inter-jet spacing and jet-swirl interaction on flame image velocimetry (FIV) derived flow fields in a small-bore diesel engine
Authors: Yang Jinxin , Rao Lingzhe , de Silva Charitha , Kook Sanghoon
Published: August 2021

This study applies Flame Image Velocimetry (FIV) to show the in-flame flow field development with an emphasis on the jet-jet interaction and jet-swirl interaction phenomena in a single-cylinder small-bore optically accessible diesel engine. Two-hole nozzle injectors with three different inter-jet spacing angles of 45°, 90° and 180° are prepared to cause different levels of jet-jet interaction. The engine has a swirl ratio of 1.7, which is used to evaluate jet-swirl interaction of the selected 180° inter-jet spacing nozzle. High-speed soot luminosity imaging was performed at a high frame rate of 45 kHz for the FIV processing. For each inter-jet spacing angle, a total of 100 individual combustion cycles were recorded to address the cyclic variations. The ensemble averaged flow fields are shown to illustrate detailed flow structures while the Reynolds decomposition using spatial filtering is applied to analyse turbulence intensity. The results showed reduced bulk flow magnitude and turbulence intensity at smaller inter-jet spacing, suggesting the two opposed wall-jet heads colliding immediately after the jet impingement on the wall can cause flow suppression effects. This raised a concern on the mixing as lower inter-jet spacing creates more fuel-rich mixtures in the jet-jet interaction region. Despite lower flow magnitude, the cyclic variation was also estimated higher for narrower inter-jet spacing, which is another drawback of the significant jet-jet interaction. Regarding the jet-swirl interaction, the wall-jet head penetrating on the up-swirl side showed lower bulk flow magnitude as the counter-flow arrangement suppressed the flow, similar with the narrower interact-jet spacing results. However, the turbulence intensity was measured higher on the up-swirl side, suggesting the relatively weaker swirl flow vectors opposed to the penetrating wall-jet head could in fact enhance the mixing.
Unpacking gatekeeping in medical institutions: A case study of access to end-of-life patients
Authors: Spencer Karen Lutfey , Mrig Emily Hammad , Bouchard Elizabeth Gage
Published: August 2021

We use end-of-life decision making as a case for examining processes of gatekeeping in medical settings. End-of-life is an exemplar in a broader context of research in professionalized and institutionalized medical settings. Influences of biomedicalization, increases in consumer (patient) options, decreases in physician authority, and a proliferation of treatment options all contribute to a context in which ethnographic study of medical settings is more complex, more urgently needed, and potentially more difficult at the same time. Building on existing literature, we suggest that gaining access to a research site is less a matter of entrée through a gate and more a long-term navigation of a dynamic social web of actors, relationships, and organizations. Further, we borrow from Nader’s (1974) concept of ‘studying up’ to examine how elite power processes may be reflected in gatekeeping. Our discussion of lessons learned considers methodological and conceptual implications with broad relevance for qualitative researchers.
Unboxing care: Constructions of happiness and gratitude in a Brazilian transnational family’s video production in the United States
Authors: Becker Mariana Lima
Published: August 2021

This case study examines the co-authoring of unboxing videos by one six-year-old, second-generation Brazilian immigrant child and her mother in the United States. These videos were created in response to boxes filled with gifts they received yearly from relatives in Brazil. To understand this mother-daughter dyad and their video production, this study draws on metaphors of mobility, the logics of reciprocity and obligation in gift-exchange, and the concept of care constellations. The analysis of interviews, field notes, and unboxing videos identified specific routes, rhythms, and frictions that fueled this family digital literacy practice. It also suggested that participants were implicated in a pattern of caregiving through a transnational cycle of gift-exchange. These findings disrupt typical framings of the unboxing genre as a manifestation of U.S. capitalist ethos and foreground the material and discursive production of care in a transnational family’s digital literacy practice.