bluuebunny/crossref_metadata_2025_split huggingface dataset:
Novel Strategy of Ventral Dural Repair for Idiopathic Thoracic Spinal Cord Herniation: Report of Outcomes and Review of Techniques
Authors: Herring Eric Z , Shin John H , Nagel Sean J , Krishnaney Ajit A 
Published: December 2018

Abstract

BACKGROUND
Idiopathic ventral thoracic spinal cord herniation is a rare condition that usually presents with progressive myelopathy or Brown-Séquard syndrome. More than 100 cases have been reported with significant variance in surgical treatment strategies and likewise, significant variance in patient outcomes. Although laminectomy has often been used, to date, there is no consensus regarding the optimal surgical approach or strategy for ventral dural repair.

OBJECTIVE
To report and illustrate a novel approach to repair the ventral dural defect with more than 2 yr of clinical follow-up. The specific approach and graft used are both detailed.

METHODS
A retrospective chart review of all known cases of idiopathic spinal cord herniation at the Cleveland Clinic over the last 15 yr was performed. Postoperative outcome scores (including the Japanese Orthopedic Association score, European Myelopathy score, and Nurick) were calculated preoperatively and postoperatively.

RESULTS
A total of 5 patients were identified. Four of five patients improved clinically after surgery and 1 patient remained unchanged at last follow-up (average 23.2 mo, range 12-60 mo). There were no complications. All patients had postoperative magnetic resonance imaging demonstrating realignment of the spinal cord and no recurrence of tethering.

CONCLUSION
A unilateral dorsolateral, transpedicular approach combined with laminectomy provides excellent exposure for ventral or ventrolateral dural defects associated with idiopathic spinal cord herniation and minimizes spinal cord manipulation. A collagen matrix graft used as an onlay between the spinal cord and ventral dural defect is a safe and effective option for ventral dural repair.
Beyond a single patch: local and regional processes explain diversity patterns in a seagrass epifaunal metacommunity
Authors: Stark Keila A , Thompson Patrick L , Yakimishyn Jennifer , Lee Lynn , Adamczyk Emily M , Hessing-Lewis Margot , O’Connor Mary I 
Published: December 2018

AbstractEcological communities are jointly structured by dispersal, density-independent responses to environmental conditions and density-dependent biotic interactions. Metacommunity ecology provides a framework for understanding how these processes combine to determine community composition among local sites that are regionally connected through dispersal. In 17 temperate seagrass meadows along the British Columbia coast, we tested the hypothesis that eelgrass (Zostera marinaL.) epifaunal invertebrate assemblages are influenced by local environmental conditions, but that high dispersal rates at larger spatial scales dampen effects of environmental differences. We used hierarchical joint species distribution modelling to understand the contribution of environmental conditions, spatial distance between meadows, and species co-occurrences to epifaunal invertebrate abundance and distribution across the region. We found that patterns of taxonomic compositional similarity among meadows were inconsistent with dispersal limitation and meadows in the same region were often no more similar to each other than meadows over 1000 km away. Abiotic environmental conditions (temperature, dissolved oxygen) explained a small fraction of variation in taxonomic abundances patterns across the region. We found novel co-occurrence patterns among taxa that could not be explained by shared responses to environmental gradients, suggesting the possibility that interspecific interactions influence seagrass invertebrate abundance and distribution. Our results add to mounting evidence that suggests that the biodiversity and ecosystem functions provided by seagrass meadows reflect ecological processes occurring both within meadows and across seascapes, and suggest that management of eelgrass habitat for biodiversity may be most effective when both local and regional processes are considered.
Dynamical structure of cortical taste responses revealed by precisely-timed optogenetic perturbation
Authors: Mukherjee Narendra , Wachukta Joseph , Katz Donald B 
Published: December 2018

AbstractThe purpose of perception is driving action. During tasting, for instance, every stimulus must be either swallowed or rejected (the latter via a behavior known as “gaping”). Taste responses in the rodent primary gustatory cortex (GC) span this sensorimotor divide, progressing through a series of firing epochs that culminate in the emergence of action-related firing. Population analyses reveal this emergence to be a sudden, coherent ensemble transition that, despite varying in latency between trials, precedes gaping onset by 0.2-0.3s. Here, we tested whether this transition drives gaping, delivering 0.5s GC perturbations at various time-points in tasting trials. Perturbations significantly delayed gaping, but only when they preceded the action-related transition - thus, the same perturbation might have an impact or not, depending on the transition latency in that particular trial. Our results suggest a distributed attractor network model of taste processing, and a dynamical role for cortex in driving motor behavior.
Transcranial ultrasound selectively biases decision-making in primates
Authors: Kubanek Jan , Brown Julian , Ye Patrick , Pauly Kim Butts , Moore Tirin , Newsome William 
Published: December 2018

AbstractTranscranial focused ultrasound has the promise to evolve into a transformative noninvasive way to modulate activity of neuronal circuits deep in the brain. The approach may enable systematic and causal mapping of how individual brain circuits are involved in specific behaviors and behavioral disorders. Previous studies demonstrated neuromodulatory potential, but the effect polarity, size, and spatial specificity have been difficult to assess. Here, we engaged non-human primates (macaca mulatta) in an established task that provides a well defined framework to characterize the neuromodulatory effects. In this task, subjects decide whether to look at a right or a left target, guided by one the targets appearing first. Previous studies showed that excitation/inhibition of oculomotor circuits leads to contralateral/ipsilateral biases in this choice behavior. We found that brief, low-intensity ultrasound stimuli (300 ms, 0.6 MPa, 270 kHz) delivered to the animals’ left/right frontal eye fields bias the animals’ decisions to the right/left visual hemifield. The effect was modest, about on the order of that produced when injecting moderate amounts of potent neuromodulatory drugs into the same regions in this task. The polarity of the effects suggested a neuronal excitation within the stimulated regions. No effects were observed when we applied the same stimuli to control brain regions not involved in oculomotor target selection. Together, using an established paradigm, we found that transcranial ultrasound is capable of modulating neurons to the extent of biasing choice behavior of non-human primates. A demonstration of tangible, brain-region-specific effects on behavior of primates constitutes a critical step toward applying this noninvasive neuromodulation method in investigations of how specific neural circuits are involved in specific behaviors or disease signs.
Accounting and the post-new public management
Authors: Steccolini Ileana 
Published: December 2018

Purpose
The purpose of this paper is to reflect various pathways for public sector accounting and accountability research in a post-new public management (NPM) context.

Design/methodology/approach
The paper first discusses the relationship between NPM and public sector accounting research. It then explores the possible stimuli that inter-disciplinary accounting scholars may derive from recent public administration studies, public policy and societal trends, highlighting possible ways to extend public sector accounting research and strengthen dialogue with other disciplines.

Findings
NPM may have represented a golden age, but also a “golden cage,” for the development of public sector accounting research. The paper reflects possible ways out of this golden cage, discussing future avenues for public sector accounting research. In doing so, it highlights the opportunities offered by re-considering the “public” side of accounting research and shifting the attention from the public sector, seen as a context for public sector accounting research, to publicness, as a concept central to such research.

Originality/value
The paper calls for stronger engagement with contemporary developments in public administration and policy. This could be achieved by looking at how public sector accounting accounts for, but also impacts on, issues of wider societal relevance, such as co-production and hybridization of public services, austerity, crises and wicked problems, the creation and maintenance of public value and democratic participation.
Derivations of design concepts for video search interfaces
Authors: Loke Cliff , Foo Schubert , Majid Shaheen 
Published: December 2018

PurposeKeywords search is intuitive, simple to use and convenient. It is also thede factoinput interface for textual and multimedia retrieval. However, individuals often perform poorly when faced with exploratory search tasks that are common during learning, resulting in poor quality searches. The purpose of this paper is to examine how adolescent learners search and select videos to support self-learning. The findings allow for the identification of design concepts of video retrieval interface and features that can facilitate better exploratory searches.Design/methodology/approachParticipants were assigned two customized video search tasks. The think-aloud protocol is used to allow participants to verbalize their actions, thoughts and feeling. This approach offered rich insights to the participants’ cognitive processes and considerations when performing the search tasks.FindingsThis study identified five themes for exploratory video search behavior: selection of internet resources, query formulation/reformulation, selection of the video(s) for preview, getting acquainted with the video content, and making a decision for the search task. The analysis of these themes led to a number of design concepts, ranging from supporting exploration of topics to better interaction with metadata.Practical implicationsThe findings can inform future development of dedicated video retrieval systems interfaces that seeks to facilitate effective exploratory searches by learners.Originality/valueThis study contributes by suggesting design concepts for video retrieval system developers to support exploratory video searches.
Consumers’ anti-consumption behavior toward organic food purchase: an analysis using SEM
Authors: Ashraf Mohammad Ali , Joarder Mohd Hasanur Raihan , Ratan Sarker Rafij Ahmed 
Published: December 2018

PurposeThe purpose of this paper is to investigate the factors affecting anti-consumption behavior of the consumers toward organic food purchase: in particular, how do individual beliefs about trustworthiness of organic foods, normative structure of social pressure and self-efficacy affect individual intentions to make organic food purchases and actual purchasing behavior? To answer this question, a theoretical framework of the theory of planned behavior (TPB) as its foundation has been established. Using measurement scales in order to measure different aspects of trustworthiness, normative structure, self-efficacy, attitude, perceived behavioral control (PBC) and subjective norms, a survey instrument has been developed to examine the several associations implied by the model of TPB.Design/methodology/approachIn doing so, data on a structured questionnaire were collected from various parts of a city based on convenience random sampling procedure. The respondents were interviewed face-to-face to collect information on a structured questionnaire. Data (n=337) were analyzed using a research framework formulated based on the TPB through the structural equation modeling procedure.FindingsThe findings of the study indicate that among the seven independent variables of trustworthiness, normative structure, self-efficacy, attitude, subjective norm and PBC, only subjective norm has not been statistically significant to influence organic food purchase behavior.Research limitations/implicationsThe result implies that various sociopolitical forces and skewed monthly incomes are inhibiting the consumers (anti-consumption) to increasingly buy the organic food products.Practical implicationsIn this regard, government, policy planners, academia as well as media have profound roles to play to encourage people to buy more organic food for their health safety and overall consumer well-being.Originality/valueThis research is based on primary data collected from the respondents of a sub-urban areas of a metropolitan city. The findings will help formulate a sound food policy for ensuring social well-being of the consumers.
Sensory analysis of 20% solids fortified blended porridge
Authors: Chambers IV Edgar , Maughan Curtis , Padmanabhan Natarajan , Alavi Sajid , Adedji Akinbode 
Published: December 2018

Purpose
Evaluations of food aid products such as corn soy blend (CSB) suggest that higher nutrient-dense weaning foods are needed. CSB at 20 per cent solids was suggested, but it is too thick for weaning use. The purpose of this paper is to examine if high or low pressure extrusion or a change from corn to sorghum could reduce viscosity without major sensory changes compared to CSB, a widely used fortified blended food (FBF).

Design/methodology/approach
A 2×2 factorial design of grain (corn or sorghum) and extrusion pressure (low or high) was used to produce fortified extruded CSB and sorghum soy blend (SSB) that match new nutritional recommendations at 20 per cent solids. A control CSB sample was also produced. Porridge was made and a descriptive panel measured sensory properties and a Bostwick Consistometer determined viscosity.

Findings
Control CSB was thicker, lumpier, and stickier than the extruded samples. Sorghum samples had more sorghum flavour and corn samples had more corn flavour, but generally other flavour characteristics differed only slightly from the control product. None of the samples were as thin as recommended for infant swallowing, but the extruded sorghum samples were less viscous than other samples.

Originality/value
Nutrient-dense FBFs at high solids content have been recommended but not yet well tested. This paper provides a sensory examination of high solids FBFs with the potential for use as supplementary foods for infants and children.
Internship in a business school: expectation versus experience
Authors: Neelam Netra , Bhattacharya Sonali , Kejriwal Vishakha , Bhardwaj Varsha , Goyal Anshul , Saxena Arushi , Dhawan Deeksha , Vaddi Aditya , Choudaha Garima 
Published: December 2018

PurposeThe purpose of this paper is to evaluate the value of internship as a function of the disparity between the initial expectation from the internship and its actual experience. The perceived internship experience has been evaluated through the expectation confirmation theory (ECT).Design/methodology/approachA sample of 106 students pursuing Master of Business Administration in a business school in India were administered a questionnaire to assess their expectations and experience before and after the internship. The self-designed questionnaire based on review of extant literature on internship included items related to supervisor–intern exchanges, significance of prior classroom academic preparation, prior work experience and perceived learning value. Students’ assessment scores on the internship project were taken as the outcome variable.FindingsPre- and post-analysis of perceived internship value indicated a positive expectation disconfirmation. The result indicates that “Positive Expectation Disconfirmation” has a significant direct relationship with overall satisfaction with internship. Structural equation modeling further revealed that perceived quality of the supervisor–intern exchange has a significant relationship with perceived internship value. Perceived significance of classroom academic preparation has a weak negative relationship with both perceived internship value and internship performance. Perceived internship value has a weak positive relationship with internship performance.Originality/valueIt is first time an attempt has been made to look into the issue of internship from the ECT.
Slip velocity and temperature jump of a non-Newtonian nanofluid, aqueous solution of carboxy-methyl cellulose/aluminum oxide nanoparticles, through a microtube
Authors: Goodarzi Marjan , Javid Saeed , Sajadifar Ali , Nojoomizadeh Mehdi , Motaharipour Seyed Hossein , Bach Quang-Vu , Karimipour Arash 
Published: December 2018

Purpose
With respect to two new subjects, i.e. nanofluids and microchannels, in heat transfer systems and modern techniques used for building them, this paper aims to study on effect of using aluminum oxide nanoparticles in non-Newtonian fluid of aqueous solution of carboxy-methyl cellulose in microtube and through application of different slip coefficients to achieve various qualities on surface of microtube.

Design/methodology/approach
Simultaneously, the effect of presence of nanoparticles and phenomenon of slip and temperature jump has been explored in non-Newtonian nanofluid in this essay. The assumption of homogeneity of nanofluid and fixed temperature of wall in microtube has been used in modeling processes.

Findings
The results have been presented as diagrams of velocity, temperature and Nusselt Number and the investigations have indicated that addition of nanoparticles to the base fluid and increase in microtube slip coefficient might improve rate of heat transfer in microtube.

Originality/value
The flow of non-Newtonian nanofluid of aqueous solution of carboxy methyl cellulose-aluminum oxide has been determined in a microtube for the first time.
Managing differences, interaction, and partnership quality in global inter-firm relationships
Authors: Wibisono Yogi Yusuf , Govindaraju Rajesri , Irianto Dradjad , Sudirman Iman 
Published: December 2018

Purpose
The purpose of this paper is to develop and to empirically test a model that explains how managing differences between an information technology (IT) provider and an overseas client influences partnership quality and ultimately affects the continuity of the relationship.

Design/methodology/approach
A field survey by distributing questionnaires to Indonesian IT providers was conducted over four months, yielding 78 completed responses. These empirical data were analyzed by the partial least squares–structural equation modeling technique to examine the measurement and structural models.

Findings
Managing differences, i.e. cultural, temporal and standards differences, has a positive impact on partnership quality through inter-firm interaction, i.e. information exchange, coordination and participation. Partnership quality, consisting of the dimensions of commitment, trust and integration, has a substantial positive impact on the continuity of the relationship.

Research limitations/implications
This study was limited by the use of a limited number of samples, reducing the precision of the results.

Practical implications
This study suggests that if the IT provider is able to manage the cultural, temporal and standards differences with the overseas client, it increases information exchange, coordination and participation between both parties, which are necessary for establishing a high-quality partnership.

Originality/value
This study is the first empirical examination of how the management of differences between an IT provider and an overseas client influences the continuity of their relationship through interaction and partnership quality.
Improving SMEs’ competitiveness with the use of Instagram influencer advertising and eWOM
Authors: Konstantopoulou Anastasia , Rizomyliotis Ioannis , Konstantoulaki Kleopatra , Badahdah Raghad 
Published: December 2018

PurposeUnder Saudi Vision 2030, there is a forthcoming raise of support to small- or medium-sized enterprises (SMEs) from the current 20 per cent of GDP to 35 per cent; thus, SMEs’ access to finance is becoming easier. At the same time, the cosmetics retail industry is expected to rapidly grow further in the next few years, on account of the already mounting demand and easy availability of cosmetics through online channels. The purpose of this study is to explore the use of beauty Instagram influencers in advertising as a tool to increase competitiveness for SMEs.Design/methodology/approachAn exploratory research design was used and in-depth interviews were conducted to get a better understanding of female Saudi young adults’ perceptions with regards to trust towards Instagram influencers, electronic word of mouth (eWOM) and advertising.FindingsSMEs can benefit greatly from eWOM in their quest for competitiveness. Therefore, when a beauty influencer on Instagram advertises a product to SMEs followers this leads to increased awareness and purchase intention. The findings indicated that the participants are quite sceptical when receiving reviews or promotion from beauty influencers on social media, as they rarely regard them as authentic. Moreover participants seem to trust influential beauty Instagrammers when they had a positive experience with the influencer before. Trust, honesty and authenticity were important factors that increase the impact of eWOM.Originality/valueThis paper offers an in-depth understanding of the use of Instagram advertising and eWOM in a rapidly developing industry and explores these as key communication pathways for modern SMEs in their effort to achieve resilience and competitiveness.