bluuebunny/crossref_metadata_2025 huggingface dataset:
Pressure fluctuation on casing wall and investigation to tip leakage flow of contra-rotating small hydro-turbine
Authors: Nan Ding , Shigemitsu Toru , Ikebuchi Tomofumi , Ishiguro Takeru , Hosotani Takuji
Published: December 2021

Renewable energy is strongly recommended to replace the traditional fossil fuels to solve the severe environmental pollution. However, small hydro-turbine performs lower efficiency, and it is also easy to be blocked and impacted. Therefore, the contra-rotating rotors are adopted to overcome the disadvantages of small hydro-turbine. The performance and internal flow condition of contra-rotating small hydro-turbine have been clarified. In this paper, a new transparent casing is manufactured, and pressure fluctuation experiments are conducted. The pressure fluctuation experiments are to clarify the pressure fluctuation during the running of contra-rotating small hydro-turbine. Then the hydraulic stability of contra-rotating small hydro-turbine can be further investigated. According to the experiment results, for the new model, most of the amplitudes of pressure fluctuation are decreased. The maximum decreasing percentage of peak-to-peak value is 74.22%, and it is appeared on the point of Pr3. On frequency domain, the dominant frequencies of pressure fluctuation are rotation frequency and blade passing frequency. The investigation to tip leakage flow of contra-rotating small hydro-turbine is conducted based on the pressure fluctuation experiment and numerical simulation. The tip leakage vortex is identified by Q-criterion. The pressure distributions in tip clearance area show that the tip leakage vortex of new model is suppressed, and this helps to reduce the amplitude of pressure fluctuation in tip clearance area.
Navigating Shomoyscapes: Time and faculty life in the urban Global South
Authors: Shahjahan Riyad A , Niloy Nisharggo , Ema Tasnim A
Published: December 2021

We aim to decenter the Global North knowledge production about time in higher education (HE) by introducing and applying a culturally sustaining concept of shomoyscapes. While the Bengali word “shomoy” literally means “time,” it goes beyond “clock time” and also refers to memories, present moments, feelings, a particular duration, and/or signifier for a temporal engagement. A shomoyscape entails a complex temporal landscape of different temporal categories, constraints, agencies, and to various degrees, embodies hybrid times (i.e., modern time coexisting with non-linear local/traditional time). Drawing on interviews and participant observations with 22 faculty in Dhaka, Bangladesh, we demonstrate the efficacy of shomoyscapes by illuminating how faculty experience, contest, and manipulate their time(s) amid rapid socio-economic transformations of Dhaka, an urban, Global South mega city. We show how shomoyscapes manifest as faculty experience temporal constraints, such as (a) traffic, (b) party-based university politics, and (c) caring for others. We suggest that Bangladeshi faculty experience and navigate shomoyscapes that are constituted by both larger temporal constraints (spatial, structural, or relational) and their temporal agency in response to these same constraints. Using a temporal lens, we contribute to a more in depth understanding of the experiences of faculty working and living in an urban, Global South context, highlighting how life “outside the academy” spills over into working “inside the academy,” rather than vice versa. We argue that shomoyscapes offer a useful temporal heuristic to help contextualize human/social relations in different arenas of social life that would otherwise remain invisible.
What’s to Come of All This Tracking “Who We Are”? The Intelligence Example
Authors: Johnson Wendy
Published: December 2021

Increasingly, we are required, encouraged, and/or motivated to track our behavior, presumably to improve our life “quality.” But health and life-satisfaction trends are not cooperating: Empirical evidence for success is sorely lacking. Intelligence has been tracked for more than 100 years; perhaps this example offers some hints about tracking’s overall social impact. I suggest that Huxley’s Brave New World offers a relevant long-term extrapolation and that popular recent tracking activities will accelerate “progress” in that dystopian direction.
The Legitimation Strategies of “Progressive” Prosecutors
Authors: Cox Alexandra L , Gripp Camila
Published: December 2021

This article focuses on the self-legitimation strategies of frontline prosecutors working in a Northeastern city in the United States (“Belton”). The research took place in a self-described “progressive” prosecutor's office in the midst of a legitimacy crisis that prosecutors faced across the country. The prosecutors in Belton spoke about their role and practices in the face of this legitimacy crisis through a strategy of differentiation from other criminal justice actors, aimed at establishing their purported positional and moral superiority in enacting criminal justice practices, and through minimizing their responsibility for the systemic harms that prosecutors more generally have been said to perpetuate.
Viscoelastic and mechanical properties of CNT-reinforced polymer-based hybrid composite materials using hygrothermal creep
Authors: Patnaik S Srikant , Roy Tarapada
Published: December 2021

In the present work, a combination of experimental and numerical procedure is proposed to study the effects of different hygrothermal conditions on the creep strain, viscoelastic properties of nanocomposites, and mechanical properties of such nanocomposite-based carbon fiber–reinforced polymer (CFRP) hybrid composite materials. Ultrasonic probe sonicator is used to randomly disperse the multiwalled carbon nanotubes into an epoxy to minimize agglomerations. Dynamic mechanical analysis is employed to conduct the creep tests under different hygrothermal conditions of such nanocomposite samples. The Findley power law is used to obtain the long-term creep behavior of nanocomposite materials. Prony series is used to determine the viscoelastic properties of nanocomposite material in the frequency domain. Coefficient of moisture expansion (CME) is independent of moisture concentration; thus, CME of the nanocomposite is also determined. Strength of materials and Saravanos–Chamis micromechanics (SCM) have also been utilized to obtain the mechanical properties of such hybrid composite materials under different hygrothermal conditions. It has been found that the inclusion of multiwalled carbon nanotubes in the nanocomposite and hybrid composites improves storage modulus and loss factor (i.e., tan δ) compared to the conventional CFRP-based composite materials under hygrothermal conditions.
Synthesis and characterization of novel methacrylate copolymers having pendant piperonyl group: monomer reactivity ratio, thermal degradation kinetics, and biological activity
Authors: Erol Ibrahim , Gencer Bayram , Gurler Zeki
Published: December 2021

In this study, 2-{[(2H-1,3-benzodioxol-5-yl)methyl]amino}-2-oxoethyl 2-methylprop-2-enoate (BMAOME) monomer was synthesized, and copolymers were prepared with glycidyl methacrylate (GMA). Structural characterizations of the compounds were performed using FTIR, 1H-, and 13C-NMR techniques. Monomer reactivity ratio values were calculated by Finemann–Ross (FR) and Kelen–Tudos (KT) methods. The Tg value of the polymers was determined by differential scanning calorimetry (DSC) and their thermal stability was determined by thermogravimetric analysis (TGA). The molecular weights (w and n) and polydispersity index of the polymers were determined by gel permeation chromatography. The Ea value of thermal decomposition was determined by using the Ozawa and Kissinger methods. The photo-stability of the copolymers was investigated. Furthermore, the photo-stability of the copolymers and the biological activity of polymers against different types of bacteria and fungi were investigated.
Formulation, optimization, and characterization of amlodipine besylate loaded polymeric nanoparticles
Authors: Chourasiya Vibha , Bohrey Sarvesh , Pandey Archna
Published: December 2021

The objectives of this work were to formulate and optimize amlodipine besylate loaded polymeric nanoparticles by using factorial design. The emulsion solvent evaporation method was employed successfully to produce the drug loaded polymeric nanoparticles and the optimization was done by the help of the 24 factorial design. The effect of the main preparation variables on the dependent variables such as nanoparticle size and % drug entrapment efficiency was studied for the optimization of the nanoparticles. The characterization of these nanoparticles was done by the different parameters such as interaction between the excipients, size, morphology, zeta potential, % drug entrapment efficiency, % process yield, and in-vitro drug release behavior. FTIR, DLS, TEM, AFM, zeta potential studies, and dialysis bag method were performed for this purpose. The in vitro drug release data were analyzed by different kinetic models to know the release mechanism. The optimized nanoparticles were spherical in shape and showed particle size 91.5 ± 4.3 nm, PDI 0.368 ± 0.014, zeta potential −17.5 mV, % drug entrapment efficiency 74.06 ± 2.1%, and % process yield 78.51 ± 1.8%. The release kinetics studies revealed that drug release from the nanoparticles follow the Korsmeyer–Peppas model.
Production of bacterial cellulose biopolymers in media containing rice and corn hydrolysate as carbon sources
Authors: de Souza Karina C , dos Santos Gabriela R , Trindade Felipe CS , S Costa Andréa Fernanda de , de Almeida Yeda MB , Sarubbo Leonie A , Vinhas Glória M
Published: December 2021

Bacterial cellulose (BC) is a promising option for ecologically viable processes. In this work, BC was produced using starch hydrolysate (rice and corn flakes) as carbon sources. The starch was hydrolyzed by fungus for glucose production. A maximum yield of 2.80 ± 0.43 g/L of BC was obtained with the hydrolyzed rice medium. Moreover, BC produced in the rice and corn media had crystallinity of around 50%. Fourier-transform infrared spectrometry confirmed the functional groups in BC as well as the absence of contaminants from production process. The thermogravimetric analysis revealed that the polymers formed with alternative media had greater thermal stability. Scanning electron microscopy revealed a morphological structure with the random arrangement of nanofibrils in a non-uniform manner distributed in the weave of both polymeric films. The biofilms produced in different media had similar properties to those of films obtained with a conventional medium, revealing that the polymeric characteristics are not modified.
Colonoscopy may be weak link in organised colorectal cancer screening programme with faecal immunochemical test
Authors: Denis Bernard , Gendre Isabelle
Published: December 2021

Objective

To evaluate the quality of colonoscopies performed after a positive faecal immunochemical test in the French colorectal cancer screening programme.

Methods

Retrospective analysis of all colonoscopies performed between 2015 and 2019 after a positive quantitative faecal immunochemical test in the population-based colorectal cancer screening programme organised in Alsace, part of the French programme. The following indicators were evaluated: annual colonoscopy volume, caecal intubation rate, adenoma detection rate, proximal serrated lesion detection rate and proportion of patients referred directly to surgery for benign polyp management. Endoscopists who performed <30 faecal immunochemical test positive colonoscopies were non-assessable.

Results

Overall, 13,455 faecal immunochemical test-positive colonoscopies performed by 116 community gastroenterologists were included, 13,067 of them by 80 assessable endoscopists. The overall caecal intubation, adenoma detection and proximal serrated lesion detection rates were 97.9%, 57.6% and 7.6%, respectively. They were <90%, <45% and <1% for 1.3%, 12.5% and 6.3% of the endoscopists, respectively. Overall, 1028 (7.9%) individuals were examined by 13 low-performing endoscopists and 328 (2.4%) individuals by 33 low-volume non-assessable endoscopists. Among 9133 individuals harbouring polyps, 155 (1.7%) had unwarranted surgery for a benign polyp. Overall, 1487 individuals (11.1%; 95% confidence interval 10.5–11.6) were not given the best possible chances, whereas 5545 individuals (41.2%; 95% confidence interval 40.4–42.0) were offered the best possible chances by 37 endoscopists.

Conclusions

At programme level, the key performance indicators evaluated largely exceeded the target standards. At individual level, at least one in nine individuals was not given the best possible chances during faecal immunochemical test-positive colonoscopies by a minority of poor-performing and/or low-volume endoscopists.
A critical incident study of ICU nurses during the COVID-19 pandemic
Authors: Rhéaume Ann , Breau Myriam , Boudreau Stéphanie
Published: December 2021

Background:

Intensive care unit nurses are providing care to COVID-19 patients in a stressful environment. Understanding intensive care unit nurses’ sources of distress is important when planning interventions to support them.

Purpose:

To describe Canadian intensive care unit nurse experiences providing care to COVID-19 patients during the second wave of the pandemic.

Design:

Qualitative descriptive component within a larger mixed-methods study.

Participants and research context:

Participants were invited to write down their experiences of a critical incident, which distressed them when providing nursing care. Thematic analysis was used to analyze the data.

Ethical considerations:

The study was approved by the ethics committee at the researchers’ university in eastern Canada.

Results:

A total of 111 critical incidents were written by 108 nurses. Four themes were found: (1) managing the pandemic, (2) witness to families’ grief, (3) our safety, and (4) futility of care. Many nurses’ stories also focused on the organizational preparedness of their institutions and concerns over their own safety.

Discussion:

Nurses experienced moral distress in relation to family and patient issues. Situations related to insufficient institutional support, patient, and family traumas, as well as safety issues have left nurses deeply distressed.

Conclusion:

Identifying situations that distress intensive care unit nurses can lead to targeted interventions mitigating their negative consequences by providing a safe work environment and improving nurses’ well-being.
The Judicial Fix for Forest Loss: The Godavarman Case and the Financialization of India’s Forests
Authors: Menon Manju , Kohli Kanchi
Published: December 2021

In India, the setting up of large projects in forest areas can be undertaken only after government permission is obtained under the Forest (Conservation) Act (FCA) of 1980. Today, this approval process includes the enumeration and valuation of forest loss, and the financing of compensatory afforestation schemes to offset the loss. These procedures were designed through the orders and judgements of the Supreme Court of India in a set of cases that started in 1995 and continue to this day. These procedures are purportedly aimed to protect and restore forest ecologies in India.

In this article we analyse the Supreme Court’s processes and orders between 1996 and 2006 which transformed the political ecology of forests in India. The judicial and expert discourses treated forest regulation and conservation as a techno-managerial exercise, separating it from social-ecological concerns such as historical dispossession of Adivasis and other forest-dependent people, and violent state suppression of diverse forms of forest management. The judicial interventions are instructive to understand the policy processes of green neoliberalism and the implications of the financialization of forests on environmental governance in India.
An Education-Counseling Program for Young Prehypertensive Adults
Authors: Jo Eunhee , Hwang Soon-jung , Jeong Eun- jin , Kim Minsun
Published: December 2021

In this non-equivalent control group, non-synchronized study, we assessed the effects of an education-counseling program for young prehypertensive adults. We included 40 and 47 prehypertensive individuals in the experimental and control groups, respectively. A structured questionnaire (pretest) was used to assess prehypertension-related knowledge, attitudes, health-promoting behavior, and self-efficacy. The experimental group underwent the 8-week program, while the control group received basic prehypertension and self-management education. Subsequently, blood pressure (BP) was measured, and prehypertension-related knowledge, attitudes, health-promoting behavior, and self-efficacy were evaluated using a questionnaire (posttest). There were significant intergroup differences in knowledge ( t = 3.04, p = .003), attitudes ( t = 6.41, p < .001), behavior ( t = 11.60, p < .001), self-efficacy ( t = 11.76, p < .001), and systolic BP ( t = −5.49, p < .001); however, diastolic BP was not significantly different ( t = −0.73, p = .473). Our findings demonstrated that the program is effective in improving knowledge, attitudes, behavior, self-efficacy, and systolic BP. Therefore, it can be used to prevent progression to hypertension.
Psychological and Physical Health Outcomes in Adults With Craniosynostosis
Authors: Stock Nicola Marie , Costa Bruna , Wilkinson-Bell Karen , Culshaw Laura , Kearney Anna , Edwards Wendy
Published: December 2021

Objectives

Within current research, little is known about the long-term outcomes of craniosynostosis. A priority-setting exercise by UK charity Headlines Craniofacial Support identified 2 key questions in this area: (1) What are the long-term physical and psychological effects for individuals with syndromic and non-syndromic craniosynostosis? and (2) Are individuals with craniosynostosis likely to suffer from mental health difficulties, or are they more resilient? The aim of the current study was to conduct an initial investigation of these priority questions.

Methods

A comprehensive UK-wide survey consisting of 9 standardized psychological outcome measures and open-ended questions was distributed online. Thirty-six eligible adults (69.4% female) with a mean age of 30.8 years responded to the survey. Participants reported having single suture craniosynostosis (27.8%) or syndromic craniosynostosis (52.8%), with 19.4% being unsure of their diagnosis. Sample means were compared to published norms using independent samples t tests. Qualitative responses were analysed using inductive content analysis.

Results

Compared to the general population, participants reported significantly less favorable scores related to appearance concerns, attachment in adult relationships, anxiety, optimism, and resilience. Self-worth, depression, and social anxiety scores were similar to norms. Qualitative responses provided additional insight into participants’ satisfaction with appearance, physical health, medical treatment, employment, relationships, and recurrence risks. Few participants had accessed psychological support.

Discussion

This preliminary study illustrates the potential long-term implications for individuals with craniosynostosis. Improved treatment protocols are needed to address physical health concerns in adulthood, while dedicated psychological resources are necessary to promote emotional well-being, social confidence, and resilience.
A Bias for Science: Institutions, Pedagogy, and the Reality of Student Choice Across Subjects in China's NCEE Reforms
Authors: Frame Mei Lan
Published: December 2021

This paper examines the issue of student choice across subject streams in recent government reforms to China’s National College Entrance Exam (NCEE). Utilizing data from a case study of an urban high school in Beijing, it argues that student choice of subjects across previous streams of science or fine arts runs counter to existing institutional structures at the secondary and higher education level, consideration of pedagogical techniques that differ by streams, and a “bias” for science grounded in sociohistorical concerns of national development.
The Benefits of Involving Undergraduate University Students in Creative Practice-led Research Projects
Authors: Dahdal Sohail
Published: December 2021

This paper examines the involvement of sixteen undergraduate students across four disciplines in a practice-led research project to create the “Once Upon a Time in Palestine” XR documentary by exploring how they performed when given complex challenges, to create this novel and complex practice-led research project. The students were trained and mentored but also were trusted to work under minimal supervision. This created a high level of engagement with the expectation of high-quality output and presented the students with opportunities not afforded to them within the rigid structure of their academic programs. This paper examines the engagement of the students, and their willingness to learn new technologies and apply this learning to produce high quality output under tight deadlines with minimal supervision and the value of interdisciplinary collaboration across multiple fields of study. The paper concludes that while there was a steep learning curve, the students were able to achieve high-level engagement and produce professional results within the specified deadlines, using the latest technological advances in the field, while learning new skills outside their academic program and also enhancing the outcome of the successful project.
Challenges of Parenting Early Adolescents
Authors: Howell Zahra , Goedeke Sonja , Thorpe Mark
Published: December 2021

While research has focused on the challenges of parenting children of toddler or preschool age, or of children with specific conditions, there is a paucity of research exploring parents’ experiences of the challenges of parenting early adolescents. This research explored mothers’ experience of the challenges in parenting their early adolescent children. Thematic analysis of semi-structured interviews with eight mothers indicate that the mothers experienced early adolescence as a period of significant change and challenge for their children and themselves. They framed “good” mothers as those who actively supported their children, prioritized their children’s needs over their own, and disguised their negative emotions. Mothers reported feelings of guilt and failure at falling below perceived parenting standards. Lack of partner and school support and understanding and time constraints were identified as exacerbating factors. This research contributes to a greater understanding of mothering experiences and offers important implications for the support of adolescents and their mothers.
Family Resilience, Media Exposure, and Children's Mental Health in China During COVID-19
Authors: He Yaliu , Li Xiaohui Sophie , Zhao Jiaqi , An Yuanyuan
Published: December 2021

This study aims to describe children's mental health conditions in the time of COVID-19 and its associations with the risk factor (media exposure) and the protective factor (family resilience) during COVID-19. The study took place from February 13th to February 29th, 2020, at the peak of the outbreak all across China. In total 441 children (M  =  11.83 years old, SD  =  0.79) from Jiangxi province, China, filled out online surveys. The results showed that children's rates of depression were relatively high and post-traumatic stress disorder (PTSD) rates were low. Based on the results of multiple linear regression analyses, family resilience was negatively associated with children's mental health issues including depression, anxiety, PTSD, and poor sleep quality counting the effects of children's age, gender, and media exposure. Children's media exposure to COVID-related news reports did not significantly contribute to the total variance of children's mental health symptoms. The findings guide the development of prevention and interventions to mobilize families’ strengths and resilience for reducing children's maladjustment during the occurrence of pandemics.
Impact of Intraoperative Salvaged Blood Autotransfusion During Obstetric Hemorrhage on the Coagulation Function: A Retrospective Cohort Analysis
Authors: Sun Ling , Xu Ying , Huang Lingfei
Published: December 2021

Objective

This study aimed to explore the effect of intraoperative blood salvage (autotransfusion) on coagulation function in the rescue of an obstetric hemorrhage.

Methods

A total of 65 pregnant women who were diagnosed with placenta previa in our Hospital and gave birth in the hospital were enrolled in the study. All the patients underwent thromboelastography, routine blood tests, and blood coagulation series + D-dimer before and within 30 min of the autologous blood transfusion. The differences in various indicators were evaluated.

Results

(1) After the autotransfusion, the hemoglobin and neutrophil counts were significantly higher than beforehand, and the platelet count was significantly reduced; the differences were statistically significant (p < .05). (2) There were no significant differences in prothrombin time (PT), fibrinogen, and D-dimer levels before and after the autotransfusion ( p > .05). The activated partial thromboplastin time after autotransfusion was shorter than that beforehand, and the difference was statistically significant ( p < .05). (3) There were no significant differences in the R value, K value, α value, and MA value of the thromboelastogram before and after the autotransfusion ( p > .05).

Conclusion

After the recovery autotransfusion, the hemoglobin of patients with a massive obstetric hemorrhage increased significantly, while the platelet count decreased, but the coagulation function and thromboelastogram did not change significantly, indicating the autotransfusion did not affect the coagulation function of the obstetric hemorrhage rescue. Thus, it would appear that intraoperative blood salvage can be safely used in the clinical rescue of massive hemorrhaging during cesarean section.
A new robust control strategy for axial flux permanent magnet motor applied on legged lunar robots
Authors: Chen Zheng-Han , Xu Zhao-Dong , Lu Hong-Fang , Yang Jian-Zhong , Yu Deng-Yun , Zhu Chen , Zhen Sheng-Chao , Zheng Hong-Mei
Published: December 2021

Legged robots have the advantage of strong terrain adaptability in lunar exploration. A new robust controller is designed for axial flux permanent magnet motors applied on the legged lunar robots to diminish the disturbance from uncertainty and external circumstance. The theoretical verification is carried out through Lyapunov stability theory. The numerical simulation and real-time experiment are carried out to access the stability and dynamic property of the systems adopting the proposed controller. The results are compared with the traditional control strategies to demonstrate the advantages of the proposed controller. The new robust controller contributes to the dynamic stability of legged lunar robots and is also appropriate for the similar mechanical systems.
“If not Mine, She Won't Belong to Another”: Mechanisms of Moral Disengagement in a Femicide Perpetrator from Brazil
Authors: Regis-Moura Amanda , Ferreira Leonardo B. , Bonfá-Araujo Bruno , Iglesias Fabio
Published: December 2021

Case files can show how aggressors use different explanations to reduce the seriousness of their crime. We aimed to identify and categorize a 2016 Brazilian case file from a perpetrator of femicide, based on moral disengagement theory. Content analysis yielded 47 verbalized excerpts, with 70 disengagement occurrences. The most frequently used mechanisms throughout the aggressor's speeches consisted of moral justification and blaming the victim herself. Results indicated that he reduced the seriousness of the femicide and sought reduction of the consequences. We discuss how speeches in criminal cases can serve as a secondary source for producing data on violence.
You Won't be My Neighbor: Opposition to High Density Development
Authors: Trounstine Jessica
Published: December 2021

Virtually every city in the United States bans multifamily homes in at least some neighborhoods, and in many cities most residential land is restricted to single family homes. This is the case even though many metropolitan areas are facing skyrocketing housing costs and increased environmental degradation that could be alleviated by denser housing supply. Some scholars have argued that an unrepresentative set of vocal development opponents are the culprits behind this collective action failure. Yet, recent work suggests that opposition to density may be widespread. In this research note, I use a conjoint survey experiment to provide evidence that preferences for single-family development are ubiquitous. Across every demographic subgroup analyzed, respondents preferred single-family home developments by a wide margin. Relative to single family homes, apartments are viewed as decreasing property values, increasing crime rates, lowering school quality, increasing traffic, and decreasing desirability.
Development and characterization of a novel multifunctional film based on wheat filter flour incorporated with carvacrol: Antibacterial, antifungal, and insecticidal potentials
Authors: Mossavi Maryam Pyro- , Kashiri Mahboobeh , Maghsoudlou Yahya , Khomiri Morteza , Alami Mehran
Published: December 2021

Wheat filter flour is a by-product derived from the modern wheat milling process. In this study, the influence of plasticizer type (glycerol (G) and sorbitol (S)) and content (25, 35, and 45 g/100 g polymer) on the wheat filter flour-based film was evaluated. Regardless of plasticizer type, increasing the plasticizer content enhanced moisture content, water solubility, and water vapor permeability of film samples. The S-plasticized films presented the greatest tensile strength and the lowest EAB%. The scanning electron microscope observations confirmed the uniform structure of G-plasticized film. Moreover, antimicrobial and physico-mechanical properties of G-plasticized (25%) film were evaluated at the presence of carvacrol (5 and 10 g/100 g polymer). The considerable improvement was achieved in water affinity (14.2%) and flexibility (8.6%) by incorporating 10% carvacrol in G-plasticized films. The greatest inhibitory properties of active wheat filter flour films were observed against Aspergillus niger. By increasing the carvacrol concentration in film-forming solution, the inhibitory activity against Listeria monocytogenes and Escherichia coli in the liquid food model system was increased by 90.3% and 66.95%, respectively. Moreover, the active wheat filter flour-based film released a considerable insecticidal activity against Sitophilus granarius and Tribolium confusum. This work offers a novel utilization of wheat filter flour as an inexpensive blend polymer to manufacture multifunctional active film, which provides a promising approach for pest management besides enhancing the safety of products.
Development of technology for producing wheat bread enriched with soy ingredient
Authors: Statsenko Ekaterina S. , Korneva Nadezhda Yu. , Pokotilo Olesya V. , Litvinenko Oksana V.
Published: December 2021

Nutritional supplements produced from soy and being rich in protein, fat and many other valuable substances have become a promising source of fortification of bakery products. This study aimed to develop a technology for producing wheat bread enriched with a protein-vitamin-mineral ingredient (PVMI) obtained from germinated soybeans. When kneading the dough, PVMI was added together with wheat flour and other dry components. Mathematical modeling of the wheat bread sensory evaluation showed the optimal content of PVMI in the recipe was 20% of the weight of wheat flour. As a result of the correlation-regression analysis, the most rational production characteristics for obtaining bread enriched with BVMI have been established. The amount of protein in the bread sample increased by 71.9%, dietary fiber - by 40.9%, vitamin E - by 34.7%, vitamin B1 - by 190%, vitamin B2 - by 80%, choline - by 186%. The fat quantity was 4.1 times more. At the same time, the total carbohydrate content decreased by 18.1% compared to the control sample. The improved chemical composition makes it possible to classify wheat bread with PVMI as an enriched food product.
Treatment of cystoid macular oedema secondary to pentosan polysulfate maculopathy using anti-VEGF and intravitreal steroid injections
Authors: De Silva Samantha Roshani , De Silva Isuru , Pal Bishwanath
Published: December 2021

Background

Pentosan polysulfate-related maculopathy is a recently described clinical entity, related to dose and long term use of this medication, and may progress despite drug cessation. Cystoid macular oedema (CMO) has been reported in some cases, but there are few reports of treatment outcomes in the literature.

Aims

We present the case of a 55 year old female, with CMO secondary to pentosan polysulfate maculopathy, that was responsive to treatment with both intravitreal anti-VEGF and steroid injections, stabilising vision over a four year follow up period.

Conclusions

This is the first report, to our knowledge, of CMO related to pentosan polysulfate maculopathy responding to intravitreal steroid injections, broadening the therapeutic options for preserving vision in these patients.
Situated Talk: A method for a reflexive encounter with #donorconceived on TikTok
Authors: Newton Giselle , Southerton Clare
Published: December 2021

There is a pressing need to facilitate sensitive conversations between people with differing or opposing views. On video-sharing app TikTok, the diverse experiences of donor-conceived people and recipient parents sit uneasily alongside each other, coalescing in hashtags like #donorconceived. This article describes a method ‘Situated Talk’ which uses TikToks to facilitate a reflexive encounter, drawing on three areas of scholarship: media ethnography and elicitation, researcher reflexivity and duoethnography/collaborative autoethnography. We describe how we, as a donor-conceived adult (Giselle) and a queer woman who would need donor sperm to have a child (Clare), employed TikToks from #donorconceived as prompts to facilitate a sensitive conversation and elicit situated insights. We explore three central insights from applying our method: (1) discomfort as a productive tension; (2) unresolved dilemmas; and (3) discovering parallels in experience. Using TikToks as stimuli, ‘Situated Talk’ contributes an innovative method for generating grounded social media insights.
Daughter-mother perspectives on feminist activism in the academy
Authors: Reedy Florence , Haynes Kathryn
Published: December 2021

This article addresses feminist solidarity between a daughter and a mother in academia. We are respectively a PhD student and aspirant early career academic, and a senior academic, both identifying as feminists and engaging in forms of activism to improve gender equality. We take an autoethnographical approach, drawing from vignettes and conversational dialogues, focusing on feminist perspectives, activism, our contested identities, fears and hopes. We reflect on the challenges of living feminist lives whilst working in gendered university institutions and highlight strategies to enact feminism whilst trying to progress and maintain an academic career at different positions on the career spectrum. Our contribution is to highlight differential experiences and understandings of academic activism between daughter and mother, early-career academics and senior leaders, in order to enhance mutual understanding and action on feminist solidarity and praxis in the academy.
Effect of texture geometry on the performance of noncircular aerodynamic journal bearings
Authors: Zare Mehrjardi Mahdi
Published: December 2021

Today, considerable uses of aerodynamic journal bearings have attracted the attention of many researchers in the field of tribology. Therefore, the theoretical and experimental analysis of their performance has been the subject of many researches. Growing application of the gas journal bearings is due to their capability in various engineering fields such as instrumentation and high-speed machines like spindles, small-scale turbomachines, and precision gyroscopes, dental milling machines, and many other rotor-bearing systems. Upgrading the performance of gas bearings by changing their geometry or using new compressible lubricants has always been one of the suggestions proposed by the tribology researchers. Recently, the development of new technologies such as laser milling and lithography increased the possibility of creating textured surfaces as a way to improve the performance of journal bearings. So, in this study, the effects of texture geometry on the steady-state performance of two-lobe noncircular aerodynamic journal bearings are presented. For this purpose, the governing Reynolds equation of hydrodynamic gas lubrication is analyzed by finite element method according to the changes of the lubricant film thickness in presence of the cubical, cylindrical, and ellipsoidal surface textures. Results show that the creation of textures on the lower lobe compared to the upper lobe or the whole surface is more effective on the performance of two-lobe aerodynamic bearings. Also, increasing both the dimple depth and the amount of bearings noncircularity, especially at shallow texture depth, cause more significant changes in the lubricant film pressure distribution and the bearing performance parameters such as load-carrying capacity, attitude angle, and frictional power loss. Further, it is obvious that the creation of cubical, cylindrical and ellipsoidal textures especially at shallow depth with an increase in the noncircularity of bearings’ geometry have a higher impact on the steady-state performance of the studied rotor-bearing system, respectively.
Situating the videogame maker’s agency through craft
Authors: Keogh Brendan
Published: December 2021

It is now widely accepted that videogames are a cultural form, and that they generate cultural meaning through the possibilities and constraints through which they shape players’ experiences and choices. However, the cultural processes through which videogames are themselves produced remain understudied and too-straightforwardly imagined. The videogame maker does not simply conceive of a videogame idea and then execute it. Instead, the videogame is produced through processes of negotiation and iteration between videogame maker, software and hardware environments and the broader expectations of the field. In this sense, videogame production can be fruitfully understood through the lens of craft. I argue that in order to politicise agency in digital play, as is this special issue’s goal, videogame research must also consider the agency of the videogame maker, and the iterative, embodied, and social processes through which videogames are produced. This article draws from interviews with videogame makers and existing research on craft production to provide a preliminary consideration of how the agency of the videogame maker as a cultural producer can be accounted for.
Patients with Acute Chest Pain - Experiences of Emergency Calls and Pre-Hospital Care
Authors: Forslund Kerstin , Kihlgren Mona , Östman Ingela , Sørlie Venke
Published: December 2021

Acute chest pain is a common reason why people call an emergency medical dispatch (EMD) centre. We examined how patients with acute chest pain experience the emergency call and their pre-hospital care. A qualitative design was used with a phenomenological-hermeneutic approach. Thirteen patients were interviewed, three women and 10 men. The patients were grateful that their lives had been saved and in general were satisfied with their pre-hospital contact. Sometimes they felt that it took too long for the emergency operators to answer and to understand the urgency. They were in a life-threatening situation and their feeling of vulnerability and dependency was great. Time seemed to stand still while they were waiting for help during their traumatic experience. The situation was fraught with pain, fear and an experience of loneliness. A sense of individualized care is important to strengthen trust and confidence between the patient and the pre-hospital personnel. Patients were aware of what number to call to reach the EMD centre, but were uncertain about when to call. More lives can be saved if people do not hesitate to call for help.
Relative deprivation and social anxiety among Chinese migrant children: Testing a moderated mediation model of perceived control and belief in a just world
Authors: Xiong Meng , Chen Jiao , Johnson Wendy
Published: December 2021

To examine the relationship between relative deprivation and social anxiety, which affects mental health, and investigate the mediating role of perceived control and the moderating role of belief in a just world (BJW) in an understudied population in Asia, we surveyed 1573 rural-to-urban migrant children (48% female; Mage = 12.3, SD = 1.7) in southeast China. Relative deprivation was positively correlated with social anxiety; perceived control partially mediated this connection. Moreover, BJW moderated the indirect effect, which was stronger for male migrant children with lower levels of BJW. The limitations and practical implications of this study are discussed.
Aluminum metal composites primed by fused deposition modeling-assisted investment casting: Hardness, surface, wear, and dimensional properties
Authors: Singh Sunpreet , Kumar Raman , Kumar Ranvijay , Chohan Jasgurpreet Singh , Ranjan Nishant , Kumar Raman
Published: December 2021

Fused deposition modeling -based three-dimensional printing techniques, when merged with the investment casting process, is one of the most innovative techniques for developing functionally graded metal–matrix composites in high-performance industrial applications. In this study, Al–Al2O3matrix composites have been prepared by the combined route of fused deposition modeling and modified investment casting processes. In the first step, the Al–Al2O3particles have been reinforced into nylon 6 thermoplastics for the preparation of fused deposition modeling-based feedstock filaments (in two configurations: C1 (60% nylon 6–30% Al–10% Al2O3) and C2 (60% nylon 6–28% Al–12% Al2O3). In the next step, the investment casting patterns of the fused deposition modeling process of nylon 6–Al–Al2O3composites were prepared. Furthermore, the investment casting has been performed by controlling the proportion of nylon 6–Al–Al2O3, the volume of pattern, the density of pattern, barrel finishing media weight, barrel fining time, and number of mold wall layers considering Taguchi L18-based experimental design. Finally, the functional aluminum matrix composites were subjected to testing to investigate average surface roughness ( Ra), deviation inside the cube, average wear, and average hardness. The study results have suggested that maintaining a higher proportion of Al2O3in three-dimensional printed parts leads to higher Ra, higher dimensional deviation, and higher hardness of investment cast parts. On the contrary, solid patterns have provided low wear rates and low-density patterns resulting in increased wear rates in final investment casted products. Furthermore, the responses are optimized concurrently with the “technique for order of preference by similarity to ideal solution–Taguchi” technique while considering the analytical hierarchical process and entropy weights of significance.
Their floods and Our floods: News values of flood photo galleries of Associated Press and Xinhua News Agency
Authors: Yu Hailing , Chen Guangfeng
Published: December 2021

This study investigates how floods are presented as newsworthy in the photo galleries of Associated Press (AP) and Xinhua News Agency (Xinhua), two news outlets with different cultural and political backgrounds. A distinction is made between international floods, that is, Their floods, and domestic floods, that is, Our floods. The data consists of around 1500 photo-caption complexes. The analysis adopts the framework of Discursive News Values Analysis. The findings show a similar tendency to highlight Negativity, Impact, Personalization and Superlativeness in presenting Their floods by AP and Xinhua, though the two differ in Proximity and Positivity. By contrast, Our floods are presented differently. Negativity, Impact and Personalization are foregrounded in AP’s presentation of floods in the United States, whereas Xinhua’s presentation of floods in China gives prominence to Negativity, Positivity, Personalization and Superlativeness. The study is significant for its attention to cross-cultural comparison and the genre of online photo galleries.
Breaking the psychological contract of travel agency employees during the COVID-19 pandemic: The moderating role of mindfulness
Authors: Mekawy Moustafa , Elbaz Ahmed Mohamed , Shabana Maha M , Soliman Mohammad
Published: December 2021

This study investigates the influence of psychological contract breach (PCB) on work-related attitudes and behaviors (i.e., organizational cynicism, workplace incivility and work alienation) and employees’ emotional exhaustion. It also examines the direct association between these attitudes and behaviors and emotional exhaustion as well as investigating how mindfulness moderates these associations. Based on a quantitative approach, data were collected from 437 employees of Egyptian travel agencies. The PLS-SEM analysis revealed that PCB positively affects employees’ emotional exhaustion and job-related attitudes as well as behaviors, which consequently impact their emotional exhaustion. The findings indicated that the effect of organizational cynicism, workplace incivility, and work alienation on emotional exhaustion is weaker with higher levels of mindfulness and greater with lower levels of mindfulness. Besides its theoretical contributions, this paper presents substantial practical insights and managerial implications for managers of travel agencies regarding the outcomes of PCB. Limitations and future research are also given.
Data reuse across international contexts? Reflections on new methods for International Qualitative Secondary Analysis
Authors: Hughes Kahryn , Frank Vibeke A , Herold Maria D , Houborg Esben
Published: December 2021

This research note reports on five online workshops by an international team of scholars, the authors, with shared interests in drug (mis)use. The workshops comprise a novel form of collective international qualitative secondary analysis (iQSA) exploring the possibilities for, and value of, qualitative data reuse across international contexts. These preparatory workshops comprise the preliminary stages of a longer programme of methodological development of iQSA, and we used them to identify what challenges there may be for translating evidence across international contexts, what strategies might be best placed to support or facilitate analytical engagement in this direction, and if possible, what empirical value such exchange might have. We discuss how working across international contexts involved the authors in new 'translational' work to address the challenges of establishing and sharing meaning. Such ‘translation’ entailed a modest degree of empirical engagement, namely, the casing of empirical examples from our datasets that supported an articulation of our various research studies, a collective interrogation of how, why and which such cases could be used for best translational effect and a collective reflexive engagement with how these cases generated new and novel questions that in turn re-engaged us with our own data in new ways. Descriptions of our datasets, therefore, emerged as multifaceted assemblages of ‘expertise’ and comprised the evidential bases for new empirical insights, research questions and directions.