bluuebunny/crossref_metadata_2025_split huggingface dataset:
Diffusion behaviors of liquid ammonia in the cellulose based on molecular dynamics simulation
Authors: Huang Shuang , Wu Xin , Li Peixing 
Published: June 2019

Purpose
In the textile industry, liquid ammonia treatment is an important way to modify the structure of natural fibers. The purpose of this paper is to reveal the diffusion behaviors of liquid ammonia in cellulose.

Design/methodology/approach
To analysis the diffusion behaviors of liquid ammonia in cellulose, the cellulose model and the system of ammonia and cellulose are built. Infrared spectrum is carried out to test the model of cellulose, which is found to agree with experiment. Diffusion coefficients, free volume and hydrogen bonds are discussed to explain diffusion behaviors.

Findings
The results demonstrate that diffusion coefficients and free volume of systems rise with increasing temperature. The diffusion coefficients of ammonia are larger than those of water, a result in agreement with free volume. To understand the mechanism of diffusion, the numbers of hydrogen bonds are tracked. It is found that without ammonia, intrachain hydrogen bonds decrease with the increase of temperature, which indicate that the structural stability of cellulose is deteriorated. And the increased interchain hydrogen bonds show that swelling properties of cellulose become better with the increase of temperature. After ammonia treatment, the numbers of intrachain hydrogen bonds remain stable, indicating that the structure stability of cellulose chain is maintained. But, there is a substantial rupture of interchain hydrogen bonds, ammonia molecule destroys the hydrogen bond network between the original cellulose molecular chains, which intensifies the activity of cellulose molecular chains and enlarges the distance between cellulose molecular chains, showing good swelling properties.

Originality/value
The research findings give a detailed information about the diffusion behaviors of liquid ammonia in cellulose, which provide the theoretical evidence for liquid ammonia treatment.
The year of establishment effect on brand heritage and attitudes
Authors: Pizzi Gabriele , Scarpi Daniele 
Published: June 2019

Purpose
This paper aims to investigate whether and how the inclusion of the year of establishment (YOE) in the brand logotype affects consumers’ perceptions of brand heritage and attitudes toward the brand.

Design/methodology/approach
Two studies are conducted, one on 12 service brands (universities) and the other on 12 product brands (beers), with 250 and 200 respondents, respectively, testing a model of moderated mediation to estimate the effect of YOE on brand attitude through brand heritage as moderated by brand familiarity.

Findings
Reporting YOE on the brand logo invokes heritage that in turn increases attitudes. Older YOEs are more effective than recent YOEs. YOE effects are stronger for less-known brands. The findings support full mediation of heritage and moderation of familiarity.

Research limitations/implications
YOE invokes heritage, especially when YOE is old and the brand, less known. Additional research should examine the YOE effect among product categories where old means “outdated,” as in the hi-tech industry.

Practical implications
Managers have been using YOE since long: the findings provide guidelines for leveraging heritage. YOE works but must be signaled in the logotype to be effective and is particularly helpful for less-known brands. Thus, YOE effect gives less-known brands an additional counterbalance to the market power of their known competitors.

Originality/value
Previous research showed that companies can exploit their past heritage in the present times. Nonetheless, previous studies highlighted the complexity and paucity of tools to induce heritage. This is the first study to address the YOE effect. Empirical evidence also answers recent calls for easily implementable ways to induce heritage.
Does teaching experience increase teacher effectiveness? A review of US research
Authors: Podolsky Anne , Kini Tara , Darling-Hammond Linda 
Published: June 2019

PurposeThe purpose of this paper is to summarize the key findings from a critical review of relevant US research to determine whether teachers, on average, improve in their effectiveness as they gain experience in the teaching profession.Design/methodology/approachThis paper is based on the authors’ review of 30 studies published since 2003 that analyze the effect of teaching experience on student outcomes in the USA.FindingsThe authors find that: teaching experience is positively associated with student achievement gains throughout much of a teacher’s career; as teachers gain experience, their students are more likely to do better on measures of success beyond test scores; teachers make greater gains in their effectiveness when they teach in a supportive, collegial environment, or accumulate experience in the same grade, subject or district; and more experienced teachers confer benefits to their colleagues.Originality/valueA renewed look at this research is warranted due to advances in methods and data systems that have allowed researchers to examine this question with greater sophistication.
Audit report lag and client industry homogeneity
Authors: Stewart Errol G. , Cairney Timothy D. 
Published: June 2019

Purpose
This study aims to examine the association between audit report lag (ARL), the length of time between the fiscal year end and the date the auditors’ report is signed, and client industry homogeneity, a measure of the similarity of operations of members of an industry.

Design/methodology/approach
Regression models are used to test the significance of industry homogeneity on the ARL, of specialists in homogenous industries on the ARL, and the completion of the audits of homogenous industry clients in the year of tightening Securities and Exchange Commission (SEC) filing deadlines.

Findings
The evidence suggests that auditors complete audits of clients more quickly in more homogenous industries. The association between ARL and homogeneity is negative, which indicates that auditors are more efficient in audits in homogenous industries. The association between ARL and specialist audits in homogenous industries is also negative. Finally, homogenous industry audits are better able to be completed by the compressed filing dates imposed by the SEC on accelerated and large accelerated filers in 2003 and 2006.

Originality/value
This study extends recent research on industry homogeneity’s influence on the audit market. By reporting an association between the homogeneity of a company’s industry and the ARL, investors and regulators have additional information to better evaluate the timing and monitor trends in the timing of the audit report dates.
Synthesis of new diazobenzene dyes clubbed with sulphonamide moiety and their biological applications
Authors: Abu-Melha Sraa 
Published: June 2019

Purpose
This paper aims to synthesise some novel diazobenzene dyestuffs clubbed with sulphonamide moiety and their application for polyester fabrics in addition to evaluating their biological activities.

Design/methodology/approach
New diazobenzene disperse dyes with improved chemical construction via sulphonamides were designed. This amendment of diazobenzene dyes was completed by introducing sulphonamide derivatives through Japp–kilingman reaction. All new synthesised dyes were elucidated by elemental analyses and spectral data (IR and 1 H-NMR). Biological activities of the synthesised diazobenzene sulphonamide derivatives were evaluated.

Findings
The synthesised diazobenzene dyestuffs clubbed with sulphonamides were applied on polyester fabrics. The synthesised dyes showed that good fastness properties and their biological evaluation exhibited good efficacy towards antibacterial, antioxidant and anticancer.

Originality/value
Sulphonamide derivatives have numerous uses, such as being used in dyestuff and providing antimicrobial, antioxidant, and anticancer properties. Sulphonamide derivatives with diazobenzene coupler components exhibited an interesting colorant for polyester and provided better biological efficacy for other non-textile applications. This work afforded new disperse dyes beside their medical applications.
Supply chain resilience for performance: role of relational practices and network complexities
Authors: Chowdhury Md Maruf Hossan , Quaddus Mohammed , Agarwal Renu 
Published: June 2019

PurposeFollowing a contingent resource-based view (CRBV) perspective, this paper aims to explore the operating context in which supply chain resilience (SCRE) is likely to enhance the supply chain performance (SCP) of organizations. More specifically, the authors developed the ‘Supply Chain Resilience’ model wherein we considered two important exogenous context variables (supply chain relational practices [SCRPs] and network complexities [NCs]) and studied their moderating roles on the relationship between SCRE and SCP. The authors also investigated the conditional effect of SCRE on SCP at different levels of SCRPs and NCs.Design/methodology/approachThis study used both qualitative and quantitative approaches. For the qualitative approach, a field study was undertaken, while the quantitative study was conducted via the use of a survey questionnaire of 274 apparel manufacturers and their suppliers in Bangladesh. The authors applied Hayes PROCESS enabled multiple regression analysis and structural equation modelling to statistically test the proposed research models.FindingsThe research findings revealed that SCRP and NC individually moderated the link between SCRE and SCP. The link between SCRE and SCP was strengthened via the interaction effect of SCRP and NC, even if the NC value was high.Practical implicationsThe findings will assist supply chain managers in managing supply chain performance during uncertainties by strengthening resilience capability at different levels of NCs and SCRPs.Originality/valueDrawing on CRBV, the authors studied how the conditional effects of exogenous variables (SCRP and NC) moderated the relationship between SCRE and SCP in both two- and three-way interactions, which is a novel approach in the SCRE literature and also extends the theoretical perspective of CRBV.
Warming can destabilize predator–prey interactions by shifting the functional response from Type III to Type II
Authors: Daugaard Uriah , Petchey Owen L. , Pennekamp Frank 
Published: July 2019

AbstractThe potential for climate change and temperature shifts to affect community stability remains relatively unknown. One mechanism by which temperature may affect stability is by altering trophic interactions. The functional response quantifies the per capita resource consumption by the consumer as a function of resource abundance and is a suitable framework for the description of nonlinear trophic interactions.We studied the effect of temperature on a ciliate predator–prey pair (Spathidiumsp. andDexiostoma campylum) by estimating warming effects on the functional response and on the associated conversion efficiency of the predator.We recorded prey and predator dynamics over 24 hr and at three temperature levels (15, 20 and 25°C). To these data, we fitted a population dynamic model including the predator functional response, such that the functional response parameters (space clearance rate, handling time and density dependence of space clearance rate) were estimated for each temperature separately. To evaluate the ecological significance of temperature effects on the functional response parameters, we simulated predator–prey population dynamics. We considered the predator–prey system to be destabilized, if the prey was driven extinct by the predator.Effects of increased temperature included a transition of the functional response from a Type III to a Type II and an increase of the conversion efficiency of the predator. The simulated population dynamics showed a destabilization of the system with warming, with greater risk of prey extinction at higher temperatures likely caused by the transition from a Type III to a Type II functional response.Warming‐induced shifts from a Type III to II are not commonly considered in modelling studies that investigate how population dynamics respond to warming. Future studies should investigate the mechanism and generality of the effect we observed and simulate temperature effects in complex food webs including shifts in the type of the functional response as well as consider the possibility of a temperature‐dependent conversion efficiency.
Gender differences in aphasia outcomes: evidence from the AphasiaBank
Authors: Sharma Saryu , Briley Patrick M. , Wright Heather Harris , Perry Jamie L. , Fang Xiangming , Ellis Charles 
Published: July 2019

AbstractBackgroundStroke is one of the leading causes of death in the United States. Aphasia is a language impairment which results as a consequence of stroke. Gender differences are reported in underlying mechanisms of stroke, however, gender differences in aphasia type and severity remain unclear.AimsTo examine gender differences in aphasia impairment based on data from AphasiaBank, a research repository of data obtained from studies of aphasia.Methods & ProceduresThe data were collected from AphasiaBank for 294 persons with aphasia (PWA) (172 men, 122 women). Baseline comparisons by gender groups were completed using independent samples t‐tests and Pearson Chi square statistics. Univariate comparisons of the total Western Aphasia Battery—Revised (WAB‐R) ‐AQ and ‐R subtests’ scores were compared between the two groups using independent samples t‐tests. Multivariate comparisons were completed by using multivariate analysis of variance (MANOVA).Outcomes & ResultsGender differences were observed in the severity of aphasia with men exhibiting more severe aphasia than women. Analyses of WAB‐R indicated greater impairment among men based on AQ and greater impairment was observed in individual subtest performance. Men exhibited statistically significantly lower WAB‐R AQs than women (67.4 versus 75.6). Lower WAB‐R AQs were derived from lower scores among men on individual subtests; information content, fluency, repetition, sentence completion, responsive speech and tests of comprehension (yes/no, auditory word recognition and sequential commands).Conclusions & ImplicationsThis study offers evidence of gender differences in aphasia severity, global communication impairment and lower scores on individual subtests used to derive the WAB‐R AQ. The limitations of the study with suggestions for future directions are presented.
Comparative analysis of 2‐week glycaemic profile of healthy versus mild gestational diabetic pregnant women using flash glucose monitoring system: an observational study
Authors: Nigam A , Sharma S , Varun N , Munjal YP , Prakash A 
Published: July 2019

ObjectiveTo compare glycaemic profiles in women with mild gestational diabetes (GDM) and those with a healthy pregnancy.DesignObservational study.SettingHospital‐based.PopulationHealthy nonpregnant, healthy pregnant, and women with GDM, diagnosed by oral glucose tolerance test.MethodsNine nonpregnant women, 33 healthy pregnant women, 29 pregnant women with GDM between 24 and 36 weeks’ gestation, received ambulatory glucose profile (AGP) monitoring for a 2‐week period. AGP values were compared in the three groups: 100 days (9600 data points) for nonpregnant women, 396 days (33 792 data points) for healthy pregnant women, and 348 days (34 408 data points) for women with GDM.ResultsMean glucose values for fasting and postmeals were highest in nonpregnant healthy women and lowest in healthy pregnant women (P < 0.001). Women with mild GDM had significantly higher blood glucose values than did healthy pregnant women, though still within the target range. Blood glucose values >160 mg/dl were observed in 41.4% (12/29) in the GDM group compared with 18.2% in women with a healthy pregnancy. The maximum peak of day and night time glucose was respectively 234 and 215 mg/dl in women with GDM compared with 183 and 171 mg/dL in the control group. Glycaemic variability as measured by interquartile range was higher in GDM pregnancies.ConclusionsAlthough the blood glucose level remained within the target levels in women with mild GDM, glycaemic variability and mean blood glucose levels were significantly higher among women with GDM than among women with a healthy pregnancy.Tweetable abstractAverage blood glucose levels and glycaemic variability are significantly higher in women with GDM than in women with a healthy pregnancy.
Morphological and functional comparison of lingual papillae in suckling and adult feral cats: Forensic evidence
Authors: Haddad Seham , Noreldin Ahmed E. , Kamal Basma , Abdeen Ahmed , Farouk Sameh M. , Abbott Louise C. , Abdo Mohamed 
Published: July 2019

AbstractFeral cats are considered as strays and are more likely to hunt in the street. We investigated the effect of environmental adaptations on the structures of lingual papillae in feral cats, which could be used as forensic evidence for their identification. There are no reported studies about the structural comparison of lingual papillae between suckling and adult feral cats. The present study described the lingual papillae of both suckling and adult cats macroscopically and microscopically via light and scanning electron microscopy. A total of nine tongue samples each for suckling and adult feral cats were examined grossly and histologically. Papillae distributions of suckling cats were similar to those observed in adult cats. Meanwhile, the shapes of those papillae were markedly different from that of corresponding papillae in adults. The change in taste bud position and size seemed to be related to the progressive growth of the papillae between adult and suckling cats; absence of taste buds in foliate papillae of feral cats at any stage; and marginal papillae which were a characteristic feature for all suckling cats. All previous elements could be affected by the specific feeding behaviour and mastication mode adaptation in suckling and adult feral cats which might help to identify suckling and adult feral cats among other breeds and animal species. We anticipate these findings may provide promising forensic evidence to discriminate between adult and suckling feral cat remains as well as prediction of environmental harshness and feeding behaviour.
Better way to measure ageing in Oceania that takes life expectancy into account
Authors: Gietel‐Basten Stuart , Scherbov Sergei 
Published: June 2019

AbstractObjectiveThe aim of the study was to improve the measurement of ageing in Oceania taking into account characteristics of populations and, in particular, changes in life expectancy.MethodUsing past and projected life tables, we calculated prospective old age dependency ratios (POADRs) to 2060, placing the boundary to old age at a moving point with a fixed remaining life expectancy (RLE) for thirteen territories of Oceania.ResultsIn some territories, POADRs grow less rapidly than old age dependency ratios (OADRs). For example, in Australia and Guam, the OADR is forecast to increase from 0.20 and 0.07 in 1980, respectively, to 0.45 and 0.39 in 2050‐55, while the POADR is forecast to increase from 0.17 and 0.07 to 0.19 and 0.19, respectively, over the same period.ConclusionPolicymakers may consider this more rational approach to measurement when considering holistic policy responses to both current issues relating to ageing and mitigating against future challenges.
The Bureaucratic Capture of Child Migrants: Effects of In/visibility on Children On the Move
Authors: Humphris Rachel , Sigona Nando 
Published: June 2019

AbstractThis article investigates the “bureaucratic capture” of migrant children through three technologies of the state: labelling, data production and social services, illuminating the ways visibility and invisibility are constructed and managed in the context of restrictionist immigration regimes. Using the case of unaccompanied asylum‐seeking children, Roma children and undocumented children, we examine how in/visibility is produced; for what purposes, and with what consequences. We demonstrate through the simultaneous broadcasting and disappearance of migrant children, bordering is reconstituted through various performances, rationalities and technologies of immigration governance. The article argues the notion of “best interests” is drawn on when the state can define these interests in accordance with their political aims and resources. The set of cases taken together provide novel insights into how states reconcile conflicting logics and reveals how the implementation of the child rights regime prevents some children from actualising their rights.
Fostering deeper learning in a flipped classroom: Effects of knowledge graphs versus concept maps
Authors: Cui Jingjing , Yu Shengquan 
Published: July 2019

AbstractFlipped classroom is an approach that has been increasingly used in K‐12 and higher education. Many studies on the flipped classroom have focused on student behaviors, with inadequate attention to student thinking, which is crucial to learning. Meanwhile, prior studies have examined the effects of visualization tools, such as concept map, on improving student learning through in‐depth thinking. Another related approach is knowledge graph, which presents a set of entities and their relationships in a graph as well as in a machine language for further processing and reasoning. It has a potential to support collaborative knowledge construction by automatic combination of individual knowledge graphs. To compare the effects of knowledge graph and concept map on student learning in a flipped classroom, we conducted an experimental study in fifth grade class at an elementary school. Students in the experimental group used a knowledge graph tool in the Learning Cell System, while those in the control group used a concept map tool, XMind, to support their learning of ancient Chinese poetry. The results showed that learning with knowledge graph resulted in better performance in the breadth and depth of subject knowledge as reflected in the students’ learning products (ie, concept maps or knowledge graphs).
Practitioner NotesWhat is already known about this topic

The flipped classroom can improve student learning by enabling active participation and interactions.
The concept map is an effective learning tool that can foster meaningful understanding and higher order thinking in both traditional and flipped classrooms.
The knowledge graph is a related tool that presents a set of entities and their semantic relationships in a graph as well as in a machine language to support further processing.
The knowledge graph can support collaborative knowledge construction by automatic combination of individual knowledge graphs.
What this paper adds

We conducted an experimental study to compare the effects of knowledge graph and concept map on student learning in a flipped classroom.
Compared with concept map, learning with knowledge graph resulted in better performance in the breadth and depth of subject knowledge as reflected in the students’ learning products (ie, concept maps or knowledge graphs).
Implications for practice and/or policy

Learning with knowledge graph fosters more cognitive engagement in exploring the relationships between concepts represented in both individual and converged knowledge graphs.
The converged knowledge graph offers the teacher a big picture of the entire class in student understanding.
Relevant training should be provided to students and teachers for effective use and learning with the knowledge graph tool.