bluuebunny/crossref_metadata_2025_split huggingface dataset:
Recycling of energy dissipated as heat accounts for high activity of Photosystem II
Authors: Zubik Monika , Luchowski Rafal , Kluczyk Dariusz , Grudzinski Wojciech , Maksim Magdalena , Nosalewicz Artur , Gruszecki Wieslaw I. 
Published: November 2019

ABSTRACTPhotosystem II (PSII) converts light into chemical energy powering almost entire life on Earth. The primary photovoltaic reaction in the PSII reaction centre requires energy corresponding to 680 nm that is significantly higher than in the case of the low-energy states in the antenna complexes involved in the harvesting of excitations driving PSII. Here we show that despite seemingly insufficient energy, the low-energy excited states can power PSII thanks to the activity of the thermally-driven up-conversion. We demonstrate the operation of this mechanism both in intact leaves and in isolated pigment-protein complex LHCII. A mechanism is proposed, according to which the effective utilization of thermal energy in the photosynthetic apparatus is possible owing to the formation of LHCII supramolecular structures, leading to the coupled energy levels, corresponding to approx. 680 nm and 700 nm, capable of exchanging excitation energy through the spontaneous relaxation and the thermal up-conversion.TOC GRAPHICS
Vortex fluidics-mediated DNA rescue from formalin-fixed museum specimens
Authors: Totoiu Christian A. , Phillips Jessica M. , Reese Aspen T. , Majumdar Sudipta , Girguis Peter R. , Raston Colin L. , Weiss Gregory A. 
Published: November 2019

AbstractDNA from formalin-preserved tissue could unlock a vast repository of genetic information stored in museums worldwide. However, formaldehyde crosslinks proteins and DNA, and prevents ready amplification and DNA sequencing. Formaldehyde acylation also fragments the DNA. Treatment with proteinase K proteolyzes crosslinked proteins to rescue the DNA, though the process is quite slow. To reduce processing time and improve rescue efficiency, we applied the mechanical energy of a vortex fluidic device (VFD) to drive the catalytic activity of proteinase K and recover DNA from American lobster tissue (Homarus americanus) fixed in 3.7% formalin for >1-year. A scan of VFD rotational speeds identified the optimal rotational speed for recovery of PCR-amplifiable DNA and while 500+ base pairs were sequenced, shorter read lengths were more consistently obtained. This VFD-based method also effectively recovered DNA from formalin-preserved samples. The results provide a roadmap for exploring DNA from millions of historical and even extinct species.
Microtubule Nucleation Promoters Mto1 and Mto2 Regulate Cytokinesis in Fission Yeast
Authors: Dundon Samantha E. R. , Pollard Thomas D. 
Published: November 2019

AbstractMicrotubules of the mitotic spindle direct cytokinesis in metazoans but this has not been documented in fungi. We report evidence that astral microtubules help coordinate cytokinetic furrow formation in fission yeast. The temperature-sensitivecps1-191strain (Liu et al., 1999) with a D277N substitution in β-glucan synthase 1 (Cps1/Bgs1) was reported to arrest with an unconstricted contractile ring. We discovered that contractile rings incps1-191cells do constrict slowly and that an S338N mutation in themto2gene is required with thebgs1D277Nmutation to reproduce thecps1-191phenotype. Complexes of Mto2 and Mto1 with γ-tubulin regulate microtubule assembly. Deletion of Mto1 along with thebgs1D277Nmutation also gives thecps1-191phenotype, which is not observed inmto2S338Normto1Δcells expressingbgs1+. Bothmto2S338Nandmto1Δcells nucleate fewer astral microtubules than normal and have higher levels of Rho1-GTP at the division site than wild-type cells. We report multiple conditions that sensitizemto1Δandmto2S338Ncells to furrow ingression phenotypes.SummaryDundon and Pollard show that compromising the Mto1 or Mto2 regulators of the fission yeast γ-tubulin complex reduces or eliminates astral microtubules, exaggerates the effects of a D277N substitution in β-glucan synthase 1 (Cps1/Bgs1) on the rate of cytokinetic furrow formation, and increases Rho1-GTP at the cleavage site.
The C-terminal tail guides assembly and degradation of membrane proteins
Authors: Sun Sha , Mariappan Malaiyalam 
Published: November 2019

SUMMARYA large number of newly synthesized membrane proteins in the endoplasmic reticulum (ER) are assembled into multi-protein complexes, but little is known about the mechanisms required for either assembly or degradation of unassembled membrane proteins. We find that C-terminal transmembrane domains (C-TMDs) with shorter tails are inefficiently inserted into the ER membrane since the translation is terminated before they emerge from ribosomes. These TMDs of insufficient hydrophobicity are post-translationally retained by the Sec61 translocon, thus providing a time window for efficient assembly with TMDs from partner membrane proteins. The unassembled C-TMDs are slowly flipped into the ER lumen. While the luminal chaperone BiP captures flipped C-TMDs with long tails and routes them to the ER-associated quality control, C-TMDs with shorter tails are diffused into the nuclear membrane. Thus, our studies suggest that C-terminal tails harbor important biochemical features for both biosynthesis and quality control of membrane protein complexes.
Inspiratory muscle training in young, race-fit Thoroughbred racehorses during a period of detraining
Authors: Katz Lisa M. , Stallard Jessica , Holtby Amy , Hill Emmeline W. , Allen Kate , Sweeney James 
Published: November 2019

AbstractAlthough inspiratory muscle training (IMT) is reported to improve inspiratory muscle strength in humans little has been reported for horses. We tested the hypothesis that IMT would maintain and/or improve inspiratory muscle strength variables measured in Thoroughbreds during detraining. Thoroughbreds from one training yard were placed into a control (Con,n=3 malesn=7 females; median age 2.2±0.4 years) or treatment group (Tr,n=5 males,n=5 females; median age 2.1±0.3 years) as they entered a detraining period at the end of the racing/training season. The Tr group underwent eight weeks of IMT twice a day, five days per week using custom-made training masks with resistance valves and an incremental threshold of breath-loading protocol. An inspiratory muscle strength test to fatigue using an incremental threshold of breath-loading was performed in duplicate before (T0) and after four (T1) and eight weeks (T2) of IMT/no IMT using a custom-made testing mask and a commercial testing device. Inspiratory measurements included the total number of breaths achieved during the test, average load, peak power, peak volume, peak flow, energy and the mean peak inspiratory muscle strength index (IMSi). Data was analysed using a linear mixed effects model,P≤0.05 significant. There were no differences for inspiratory measurements between groups at T0. Compared to T0, the total number of breaths achieved (P=0.02), load (P=0.003) and IMSi (P=0.01) at T2had decreased for the Con group while the total number of breaths achieved (P<0.001), load (P=0.03), volume (P=0.004), flow (P=0.006), energy (P=0.01) and IMSi (P=0.002) had increased for the Tr group. At T2the total number of breaths achieved (P<0.0001), load (P<0.0001), volume (P=0.02), energy (P=0.03) and IMSi (P<0.0001) were greater for the Tr than Con group. In conclusion, our results support that IMT can maintain and/or increase aspects of inspiratory muscle strength for horses in a detraining programme.
A deep learning framework for improving protein interaction prediction using sequence properties
Authors: Guo Yi , Chen Xiang 
Published: November 2019

AbstractMotivationAlmost all critical functions and processes in cells are sustained by the cellular networks of protein-protein interactions (PPIs), understanding these is therefore crucial in the investigation of biological systems. Despite all past efforts, we still lack high-quality PPI data for constructing the networks, which makes it challenging to study the functions of association of proteins. High-throughput experimental techniques have produced abundant data for systematically studying the cellular networks of a biological system and the development of computational method for PPI identification.ResultsWe have developed a deep learning-based framework, named iPPI, for accurately predicting PPI on a proteome-wide scale depended only on sequence information. iPPI integrates the amino acid properties and compositions of protein sequence into a unified prediction framework using a hybrid deep neural network. Extensive tests demonstrated that iPPI can greatly outperform the state-of-the-art prediction methods in identifying PPIs. In addition, the iPPI prediction score can be related to the strength of protein-protein binding affinity and further showed the biological relevance of our deep learning framework to identify PPIs.Availability and ImplementationiPPI is available as an open-source software and can be downloaded from https://github.com/model-lab/deeplearning.ppiContactxiang-chen@zju.edu.cn
Persuasive language of responsible organisation? A critical discourse analysis of corporate social responsibility (CSR) reports of Nigerian oil companies
Authors: Nwagbara Uzoechi , Belal Ataur 
Published: November 2019

Purpose
The purpose of this paper is to investigate how language (choice) in CSR reports of leading oil companies in Nigeria is used to portray an image of “responsible organisation”.

Design/methodology/approach
This paper draws insights from communication studies (persuasion theory) and critical discourse analysis (CDA) studies to discursively unpack all those subtle and visible, yet equally invisible, linguistic strategies (micro-level elements): wording (single words), phrases and chains of words (clauses/sentences). These linguistic strategies (micro-level elements) proxy organisational discourses (meso-level elements), which are reflective of wider social practices (macro-level elements). The authors base the investigation on CSR reports of six leading oil companies in Nigeria from 2009 to 2012.

Findings
The findings of this study reveal that (leading) Nigerian oil companies linguistically use CSR reports to persuasively construct and portray the image of “responsible organisation” in the eyes of wider stakeholders (the communities) despite serious criticism of their corporate (ir) responsibility.

Originality/value
As opposed to the previous content analysis based studies, this paper contributes to the emerging stream of CDA studies on CSR reporting by providing a finer-grained linguistic analytical schema couched in Fairclough’s (2003) approach to CDA (and persuasion theory). This helps to unravel how persuasive language/discourse of responsible organisation is enacted and reproduced. The authors thus respond to the calls for theoretical plurality in CSR reporting research by introducing persuasion theory from communication studies literature which has hitherto been rarely applied.
Causes and consequences of voluntary assurance of CSR reports
Authors: Clarkson Peter , Li Yue , Richardson Gordon , Tsang Albert 
Published: November 2019

PurposeThe purpose of this paper is twofold. First, the authors investigate a firm’s decision to provide a CSR report, and if so, whether to have the report assured and to seek higher quality assurance as reflected through the choices of the scope of the assurance and type of assurer, Big 4 accounting firm vs specialist consultant. Second, the authors investigate the impact of voluntary assurance of CSR reports, assurance scope and type of assurer on the likelihood of inclusion in the DJSI and on market valuation.Design/methodology/approachThe study’s sample consists of 17,050 firm-year observations from 40 countries with CSR reports available from Corporate Register and ESG metrics available from ASSET4 over the period 2009–2015. The study first empirically examines the associations between CSR commitment and each of CSR report provision, CSR report assurance, assurance scope and type of assurer. It then examines that association between both inclusion in the DJSI and market valuation with each of CSR report assurance, assurance scope and type of assurer, using inclusion in the DJSI as an objective measure of a firm’s reputation for sustainability given its recognition as a leading indicator for corporate sustainability and market valuation as a reflection of the broader set of capital market participants.FindingsThe authors establish two key findings consistent with the predictions of signaling theory. First, we show that high CSR commitment firms are more likely to: provide standalone CSR reports; obtain assurance; obtain assurance from a Big 4 accounting firm; and, adopt higher assurance scope. Second, the authors find that both CSR report assurance and assurance scope increase the likelihood of inclusion in the DJSI, but that the type of assurance provider does not. Alternatively, the authors find that capital market participants appear to value the provision of a CSR report only when it is assured by a Big 4 accounting firm.Originality/valueThe results in the existing literature exploring the capital market benefits to CSR Assurance have been mixed. Firms that voluntarily obtain CSR Assurance incur a cost in doing so and must perceive a net benefit from obtaining such assurance. Despite the limited guidance currently provided by existing CSR standards, we establish the existence of benefits to obtaining CSR Assurance in terms of enhanced likelihood of DJSI inclusion and, more generally, enhanced market valuation. The discussions with DJSI analysts indicate that CSR assurance does enhance the perceived reliability of CSR data, thus improving user confidence.
Managerial overconfidence, firm transparency, and stock price crash risk
Authors: Liang Quanxi , Ling Leng , Tang Jingjing , Zeng Haijian , Zhuang Mingming 
Published: November 2019

PurposeThe purpose of this paper is to empirically analyze whether and how managerial overconfidence affects stock price crash risk.Design/methodology/approachBased on a large sample of Chinese non-state-owned firms from 2000 to 2012, this study employs methods including multiple linear regression model, Heckman two-stage treatment effect procedure, firm fixed effects model and event study to clarify the causality relationship between managerial overconfidence and crash risk.FindingsThe authors find that firms with overconfident managers (chief executive officer or board chairs) are more likely to experience future stock price crashes than firms with non-overconfident managers. The effect of overconfidence on crash risk is more pronounced for firms with low transparency, suggesting that firm opacity facilitates overconfident managers’ bad news hoarding activities, which, in turn, increases stock price crash risk. The authors also show evidence that overconfident managers tend to disclose good news in a timely manner.Originality/valueThe authors add to the growing literature on stock price crash risk. Specifically, the authors find that the cognitive bias of board chair plays an important role in the bad news hoarding activities, thereby increasing the likelihood of stock price crash. This study also contributes to the literature that addresses the effects of managerial overconfidence on corporate finance issues.
Site selection criteria for temporary sheltering in urban environment
Authors: Jahangiri Katayoun , Borgheipour Hasti , Gendeshmin Saeid Bahramzadeh , Matin Amirhossein , Monazami Tehrani Ghazaleh 
Published: November 2019

Purpose
The inevitable occurrence of natural disasters and crisis arising from them causes a lot of losses globally, particularly in disaster-prone countries such as Iran. One of the main issues considered by organizations involved in crisis management is the selection of suitable sites for temporary sheltering for disaster victims. This study aims to choose safe places to establish temporary sheltering in urban environment.

Design/methodology/approach
Initially, relevant factors are identified by reviewing literature and through consultation with disaster experts. Next, the important layers were collected and analytical hierarchy process was used to assess the criteria weights based on their effectiveness on selection of safe sites for temporary sheltering. Finally, for integrating layers of factors, overlay and fuzzy models were used in Geographic Information System (GIS) environment, and subsequently, a proper map was prepared and suitable areas were identified.

Findings
7 main criteria and 19 sub-criteria were selected to provide safe places for temporary sheltering. The results of fuzzy model in this study provide more accurate and limited safe areas for temporary sheltering when compared to index overlay model.

Originality/value
The results of this study will help decision-makers and local and regional managers to reduce the vulnerability of at-risk communities in urban environments. Moreover, choosing appropriate places for temporary shelters would help build community disaster resilience according to these criteria.
Finite element analysis of plasticity behaviour of aluminium alloys in high-pressure torsion compressive loading stage
Authors: Lamin Fauziana , Ahmad Kamal Ariffin Ahmad Kamal Ariffin , Mohamed Intan Fadhlina 
Published: November 2019

Purpose
The purpose of this paper is to examine the plasticity behaviour of aluminium alloys in high-pressure torsion (HPT) compressive loading stage. It is a part of the strengthen lightweight material development through severe plastic deformation.

Design/methodology/approach
A finite element simulation of HPT compression stage by displacement control incremental loading was proposed by taking into account an unconstraint HPT configuration. The quasi-static condition was utilised, by embedding strain hardening plasticity constitutive model and considering frictional effects, to assess the plasticity behaviour of aluminium alloys, particularly AA2024 and AA6082.

Findings
The present investigation clearly indicates that the deviation of material flow as a result of sticking condition of µ⩾0.5, was found to be negligible. An inhomogeneous material flow along the sample radial and thickness direction was evident, producing a stress concentration at the edge of the loaded surface, indicating the anticipated region of failure. The effective plastic strain in the compression stage was also found to be significant. Based on the effective strain response, plasticity behaviour of the compressed sample was predicted.

Originality/value
This paper demonstrates the plasticity behaviour of the analysed aluminium alloys. Since the mechanical properties produced by the deformed material are closely related to the exerted plastic deformation, understanding the phenomenon associated with the plastic strain development is essential. The outcome of this research will assist in seizing the opportunities of improving both material properties and the HPT procedures.
Evaluation of halal tourism in terms of bibliometric characteristics
Authors: Yagmur Yenal , Ehtiyar Rüya , Aksu Akin 
Published: November 2019

PurposeThe growing competition between the developing halal market and the countries in halal market has enhanced the interest of researchers in this field in recent years. In this context, this study aims to examine the studies published in the international literature on halal tourism between 1975 and 2019 in terms of bibliometric characteristics and to reveal tendencies and trends of these publications within the framework of certain parameters.Design/methodology/approachIn accordance with this purpose, the topic of “halal tourism” was searched in the database of “Web of Science Core Collection,” and bibliometrics data in regard to the publications were reached. Publications on halal tourism were examined in the context of years, numbers, genres, research fields, fields of study, journals in which they are found, the number of authors and page number of publications, research approaches of publications, themes of publications, country where the research data was collected (examined), names of the authors in the publications and publication numbers of the authors, and the number of citations.FindingsIn this paper, it was determined that the studies in the field of halal tourism increased in recent years. It was concluded that these studies were mainly carried out after 2011 and showed a large increase in 2016, the majority of the publications were in the form of study-paper and the average number of citations in the field was 3.1, and h-index number was seven.Research limitations/implicationsThis paper is based on bibliometric analysis. Bibliometric analyses were performed on the “Web of Science Core Collection.” Because of database searches were made only on “Web of Science Core Collection,” the publications that were not scanned here could not be analyzed.Originality/valueThis paper examined the studies on halal tourism between 1975 and 2019 with a bibliometric analysis technique. Thus, it is aimed to learn more about halal tourism and to provide the researchers who work in this field with information about the structure of this field.
The determinants of imported food purchase of Muslim consumers in Malaysia
Authors: Choi YoungMin , Jeong JinYi 
Published: November 2019

Purpose
This paper aims to investigate the consumption and actual purchase behaviour of Malaysian food consumers who have experienced of buying imported food and to compare the differences between two groups, Muslim and non-Muslim.

Design/methodology/approach
This study collected data from the imported food buyers in Malaysia using a self-administered questionnaire. A total of 435 usable responses were used for further analysis. To identify the Malaysian consumers’ imported food consumption, exploratory factor analysis was used. A t-test and χ2 test were applied to compare the difference of consumer groups between Muslim and non-Muslims.

Findings
The results have found the determinants of imported food purchasing of both Muslim and non-Muslim consumers and the most perceived quality aspects related to their food lifestyles. Malaysian consumers, regardless of religion, are most affected by the intrinsic factors like nutrients, health functionality and freshness. Muslim consumers also mostly perceive taste as a quality aspect regarding to their food lifestyles.

Practical implications
This study provides a number of potentially important and valuable resources for the manufacturer or exporters seeking to enter the Malaysian food market. Imported food into Malaysia should adopt the customised strategies through the products emphasising health benefits and tastes to achieve maximum marketing results.

Originality/value
This paper contributes important information about imported food consumption of Malaysian consumers. Therefore, it will be useful for food manufacturers or exporters from in particular non-Muslim countries to understand Muslim consumers’ perception and purchasing behaviour towards imported food.