bluuebunny/crossref_metadata_2025_split huggingface dataset:
ForestScanner: A mobile application for measuring and mapping trees with LiDAR-equipped iPhone and iPad
Authors: Tatsumi Shinichi , Yamaguchi Keiji , Furuya Naoyuki 
Published: December 2021

ABSTRACTGround-based light detection and ranging (LiDAR) is becoming increasingly popular as an alternative means to conventional forest inventory methods. By gauging the distances to multiple points on the surrounding object surfaces, LiDAR acquires 3D point clouds from which tree sizes and spatial distributions can be rapidly estimated. However, the high cost and specialized skills associated with LiDAR technologies have put them out of reach for many potential users.We here introduce ForestScanner, a free, mobile application that allows LiDAR-based forest inventories by means of iPhone or iPad with a built-in LiDAR sensor. ForestScanner does not require any manual analysis of 3D point clouds. As the user scans trees with an iPhone/iPad, ForestScanner estimates the stem diameters and spatial coordinates based on real-time instance segmentation and circle fitting. The users can visualize, check, and share the scanning resultsin situ.By using ForestScanner, we measured the stem diameters and spatial coordinates of 672 trees within a 1 ha plot in 1 h 39 min with an iPhone and in 1 h 38 min with an iPad (diameter ≥5 cm; detection rate = 100%). The diameters measured by ForestScanner and a diameter tape were in good agreement; R2=0.963 for iPhone and R2=0.961 for iPad. ForestScanner and a conventional surveying system showed almost identical results for tree mapping (assessed by the spatial distances among trees within 0.04 ha subplots); Mantel R2=0.999 for both iPhone and iPad. ForestScanner reduced the person-hours required for measuring diameters to 25.7%, mapping trees to 9.3%, and doing both to 6.8% of the person-hours taken using a dimeter tape and the conventional surveying system.Our results indicate that ForestScanner enables cost-, labor-, and time-efficient forest inventories. The application can increase the accessibility to LiDAR for non-experts (e.g., students, citizen scientists) and enhance resource assessments and biodiversity monitoring in forests worldwide.
Presence and the global implications of plastics in wild commercial fish in the Alboran Sea
Authors: López-Martínez Sergio , Perez-Rubín Cipriano , Gavara Rafael , Handcock Rebecca , Rivas Marga L 
Published: December 2021

AbstractThe presence of plastic in the environment has become a major problem for marine megafauna. The identification of the global micro and mesoplastic uptake by commercial fish populations may allow for a better understanding of their impact. This study aims to: (i) determine the presence and composition of plastic in two pelagic fish (Engraulis encrasicolus and Scomber scombrus) and two demersal species (Scyliorinus canicula and Mullus barbatus) from the Alboran Sea (western Mediterranean) to quantify the relationship between plastic prevalence and habitat and feeding behavior in the selected fish species, (ii) compare local measurements made of the presence of plastics ingested by these four fish species with published values from a across their range literature review, and (iii) identify the methodologies used in similar studies of plastic pollution in fish. Across their range, the highest occurrence of plastics was found in E. encrasicolus, which contrasts to that found in S. scombrus at the Alboran sea. Material analysis of the collected data showed the most predominant fiber color was black and the predominant plastic polymer was polyethylene. The increasing emerging risk of plastics and the levels of macro- and micro-plastic ingested by seafood in this study support the suggest that quantifying plastic presence and composition may be essential as a food safety measure.
Functional coupling between TRPV4 channel and TMEM16F modulates human trophoblast fusion
Authors: Zhang Yang , Liang Pengfei , Shan Ke Zoe , Feng Liping , Chen Yong , Liedtke Wolfgang , Yang Huanghe 
Published: December 2021

AbstractTMEM16F, a Ca2+-activated phospholipid scramblase (CaPLSase), is critical for placental trophoblast syncytialization, HIV infection, and SARS-CoV2-mediated syncytialization. How TMEM16F is activated during cell fusion is unclear. Here, we used trophoblasts as a model for cell fusion and demonstrated that Ca2+influx through Ca2+permeable transient receptor potential vanilloid channel TRPV4 is critical for TMEM16F activation and subsequent human trophoblast fusion. GSK1016790A, a TRPV4 specific agonist, robustly activates TMEM16F in trophoblasts. Patch-clamp electrophysiology demonstrated that TRPV4 and TMEM16F are functionally coupled within Ca2+microdomains in human trophoblasts. Pharmacological inhibition or gene silencing of TRPV4 hindered TMEM16F activation and subsequent trophoblast syncytialization. Our study uncovers the functional expression of TRPV4 and a physiological activation mechanism of TMEM16F in human trophoblasts, thus providing us with novel strategies to regulate CaPLSase activity as a critical checkpoint of physiologically- and disease-relevant cell fusion events.
Two Stages of Speech Envelope Tracking in Human Auditory Cortex Modulated by Speech Intelligibility
Authors: Xu Na , Zhao Baotian , Luo Lu , Zhang Kai , Shao Xiaoqiu , Luan Guoming , Wang Qian , Hu Wenhan , Wang Qun 
Published: December 2021

AbstractThe envelope is essential for speech perception. Recent studies have shown that cortical activity can track the acoustic envelope. However, whether the tracking strength reflects the extent of speech intelligibility processing remains controversial. Here, using stereo-electroencephalogram (sEEG) technology, we directly recorded the activity in human auditory cortex while subjects listened to either natural or noise-vocoded speech. These two stimuli have approximately identical envelopes, but the noise-vocoded speech does not have speech intelligibility. We found two stages of envelope tracking in auditory cortex: an early high-γ (60-140 Hz) power stage (delay ≈ 49 ms) that preferred the noise-vocoded speech, and a late θ (4-8 Hz) phase stage (delay ≈ 178 ms) that preferred the natural speech. Furthermore, the decoding performance of high-γ power was better in primary auditory cortex than in non-primary auditory cortex, consistent with its short tracking delay. We also found distinct lateralization effects: high-γ power envelope tracking dominated left auditory cortex, while θ phase showed better decoding performance in right auditory cortex. In sum, we suggested a functional dissociation between high-γ power and θ phase: the former reflects fast and automatic processing of brief acoustic features, while the latter correlates to slow build-up processing facilitated by speech intelligibility.
Conformational variation in enzyme catalysis: A structural study on catalytic residues
Authors: Riziotis Ioannis G. , Ribeiro António J. M. , Borkakoti Neera , Thornton Janet M. 
Published: December 2021

AbstractConformational variation in catalytic residues can be captured as alternative snapshots in enzyme crystal structures. Addressing the question of whether active site flexibility is an intrinsic and essential property of enzymes for catalysis, we present a comprehensive study on the 3D variation of active sites of 925 enzyme families, using explicit catalytic residue annotations from the Mechanism and Catalytic Site Atlas and structural data from the Protein Data Bank. Through weighted pairwise superposition of the functional atoms of active sites, we captured structural variability at single-residue level and examined the geometrical changes as ligands bind or as mutations occur. We demonstrate that catalytic centres of enzymes can be inherently rigid or flexible to various degrees according to the function they perform, and structural variability most often involves a subset of the catalytic residues, usually those not directly involved in the formation or cleavage of bonds. Moreover, data suggest that 2/3 of active sites are flexible, and in half of those, flexibility is only observed in the side chain. The goal of this work is to characterise our current knowledge of the extent of flexibility at the heart of catalysis and ultimately place our findings in the context of the evolution of catalysis as enzymes evolve new functions and bind different substrates.
In silicoand functional characterisation of an ultra-rareCFTRmutation identifies novel lasso motif interactions regulating channel gating
Authors: Wong Sharon L. , Awatade Nikhil T. , Astore Miro A. , Allan Katelin M. , Carnell Michael J. , Slapetova Iveta , Chen Po-chia , Capraro Alexander , Fawcett Laura K. , Whan Renee M. , Griffith Renate , Ooi Chee Y. , Kuyucak Serdar , Jaffe Adam , Waters Shafagh A. 
Published: December 2021

AbstractCharacterisation of I37R – a novel mutation in the lasso motif of ABC-transporter CFTR, a chloride channel – was conducted by theratyping using CFTR potentiators which increase channel gating activity and correctors which repair protein trafficking defects. I37R-CFTR function was characterised using intestinal current measurements (ICM) in rectal biopsies, forskolin-induced swelling (FIS) in intestinal organoids and short circuit current measurements (Isc) in organoid-derived monolayers from an individual with I37R/F508del CFTR genotype. We demonstrated that the I37R-CFTR mutation results in a residual function defect amenable to treatment with potentiators and type III, but not to type I, correctors. Molecular dynamics of I37R-CFTR using an extended model of the phosphorylated, ATP-bound human CFTR identified an altered lasso motif conformation which results in an unfavourable strengthening of the interactions between the lasso motif, the regulatory (R) domain and the transmembrane domain two (TMD2). In conclusion, structural and functional characterisation of the I37R-CFTRmutation increases understanding of CFTR channel regulation and provides a potential pathway to access CFTR modulator treatments for individuals with CF caused by ultra-rareCFTRmutations.
PTRN-1/CAMSAP and NOCA-2/NINEIN are required for microtubule polarity in Caenorhabditis elegans dendrites
Authors: He Liu , van Beem Lotte , Hoogenraad Casper C. , Harterink Martin 
Published: December 2021

AbstractThe neuronal microtubule cytoskeleton is key to establish axon-dendrite polarity. Dendrites are characterized by the presence of minus-end out microtubules, however the mechanisms that organize these microtubules minus-end out is still poorly understood. Here, we characterized the role of two microtubule minus-end related proteins in this process in Caenorhabditis elegans, the microtubule minus-end stabilizing protein CAMSAP (PTRN-1) and a NINEIN homologue (NOCA-2). We found that CAMSAP and NINEIN function in parallel to mediate microtubule organization in dendrites. During dendrite outgrowth, RAB-11 positive vesicles localized to the dendrite tip function as a microtubule organizing center (MTOC) to nucleate microtubules. In the absence of either CAMSAP or NINEIN, we observed a low penetrance MTOC vesicles mis-localization to the cell body, and a nearly fully penetrant phenotype in double mutant animals. This suggests that both proteins are important for localizing the MTOC vesicles to the growing dendrite tip to organize microtubules minus-end out. Whereas NINEIN localizes to the MTOC vesicles where it is important for the recruitment of the microtubule nucleator γ-tubulin, CAMSAP localizes around the MTOC vesicles and is co-translocated forward with the MTOC vesicles upon dendritic growth. Together, these results indicate that microtubule nucleation from the MTOC vesicles and microtubule stabilization are both important to localize the MTOC vesicles distally to organize dendritic microtubules minus-end out.
Arithmetic properties of (2, 3)-regular overcubic bipartitions
Authors: Nayaka S. Shivaprasada 
Published: December 2021

PurposeLet b¯2,3(n), which enumerates the number of (2, 3)-regular overcubic bipartition of n. The purpose of the paper is to describe some congruences modulo 8 for b¯2,3(n). For example, for each α ≥ 0 and n ≥ 1, b¯2,3(8n+5)≡0(mod8), b¯2,3(2⋅3α+3n+4⋅3α+2)≡0(mod8).Design/methodology/approachH.C. Chan has studied the congruence properties of cubic partition function a(n), which is defined by ∑n=0∞a(n)qn=1(q;q)∞(q2;q2)∞.FindingsTo establish several congruence modulo 8 for b¯2,3(n), here the author keeps to the classical spirit of q-series techniques in the proofs.Originality/valueThe results established in the work are extension to those proved in ℓ-regular cubic partition pairs.
Opportunism, bounded rationality and governance choices in exploration alliances: the moderating role of boundary spanners' guanxi
Authors: Lin Liang-Hung , Ho Yu-Ling 
Published: December 2021

PurposeBy distinguishing opportunism-based and bounded rationality-based transaction costs, the study examines how firms use equity/relational governance and boundary spanners' guanxi to govern their exploration alliances in a transaction cost economizing way.Design/methodology/approachThis study used a survey methodology for data collection, and the sample consists of 150 exploration alliances formed by large Taiwanese information and electronic firms.FindingsFindings of this study show that exploration alliances incur considerable transaction costs and require high-level equity control and relational governance. The positive exploration of alliance-equity ownership relationship will be weakened by boundary spanners' guanxi when guanxi serves to harmonize conflicts and mitigate opportunism-based transaction costs, thereby reducing the need for using costly equity ownership to govern exploration alliances. In contrast, the positive exploration alliance-relational governance relationship will be amplified when guanxi becomes a source of legitimacy in the Chinese guanxi institution. This relation-augmenting effect will drive more relational governance because guanxi and relational governance together allow alliance managers to obtain sufficient legitimacy in the formation of a common dominant frame, thereby mitigating bounded rationality-based transaction costs.Originality/valueBy distinguishing various moderating effects of boundary spanners' guanxi and separating transaction costs into two forms, this study contributes to the existing literature as well as advances our understanding of alliance governance decisions in the Chinese business environment.
Motion control of the two joint planar robotic manipulators through accelerated Dai–Liao method for solving system of nonlinear equations
Authors: Halilu Abubakar Sani , Majumder Arunava , Waziri Mohammed Yusuf , Ahmed Kabiru , Awwal Aliyu Muhammed 
Published: December 2021

PurposeThe purpose of this research is to propose a new choice of nonnegative parameter t in Dai–Liao conjugate gradient method.Design/methodology/approachConjugate gradient algorithms are used to solve both constrained monotone and general systems of nonlinear equations. This is made possible by combining the conjugate gradient method with the Newton method approach via acceleration parameter in order to present a derivative-free method.FindingsA conjugate gradient method is presented by proposing a new Dai–Liao nonnegative parameter. Furthermore the proposed method is successfully applied to handle the application in motion control of the two joint planar robotic manipulators.Originality/valueThe proposed algorithm is a new approach that will not either submitted or publish somewhere.
Barriers and enablers to health and social services for older prisoners transitioning to community
Authors: Hagos Amanuel Kidane , Withall Adrienne , Ginnivan Natasha Ann , Snoyman Phillip , Butler Tony 
Published: December 2021

Purpose
When properly designed and implemented, prison-to-community transition programs targeting older prisoners could potentially save resources, reduce reoffending rates and contribute to improved public protection and safety. However, older prisoners transitioning to community are often neglected and overlooked, and thus, interventions targeted to address their needs are limited. The purpose of this study was to identify barriers and enablers to health and social services for older prisoners transitioning to community.

Design/methodology/approach
A qualitative study was conducted using focus group discussions with corrections officers, community corrections officers and parole officers (n = 32) in four correctional centres, two community corrections offices (CCOs) and one parole unit in New South Wales (NSW) in 2019. The authors used thematic analysis to analyse the findings.

Findings
The study identified three main themes relating to barriers and enablers: organisational, social and economic and individual and family and seven sub-themes: planning the transition, communication, assisting prisoners, transition programs, officers’ knowledge and scope of work, social and economic issues and offenders’ conditions

Research limitations/implications
The processes required to ensure effective prison-to-community transition of older prisoners are not well-developed suggesting the need for more systemic and organised mechanisms. Implications of the barriers and enablers for policy, research and practice are discussed.

Originality/value
This study identified a composite of barriers and enablers to health and social services for older prisoners in NSW prisons and CCOs.
Which professional skills value more under digital transformation?
Authors: Paklina Sofia , Shakina Elena 
Published: December 2021

PurposeThis study seeks to explore the demand side of the labour market influenced by the digital revolution. It aims at identifying the new composition of skills and their value as implicitly manifested by employers when they look for the new labour force. The authors analyse the returns to computing skills based on text mining techniques applied to the job advertisements.Design/methodology/approachThe methodology is based on the hedonic pricing model with the Heckman correction to overcome the sample selection bias. The empirical part is based on a large data set that includes more than 9m online vacancies on one of the biggest job boards in Russia from 2006 to 2018.FindingsEmpirical evidence for both negative and positive returns to computing skills and their monetary values is found. Importantly, the authors also have found both complementary and substitutional effects within and between non-domain (basic) and domain (advanced) subgroups of computing skills.Originality/valueApart from the empirical evidence on the value of professional computing skills and their interrelations, this study provides the important methodological contribution on applying the hedonic procedure and text mining to the field of human resource management and labour market research.
Effects of trade misinvoicing on money laundering in developing economies
Authors: Umar Bello 
Published: December 2021

Purpose
This study aims to define the concepts and determine the extent to which trade misinvoicing influences money laundering activities in developing countries.

Design/methodology/approach
A qualitative research methodology was adopted using a descriptive synthesis of secondary data due to the heterogeneous nature of data sources (empirical evidence and content analysis).

Findings
Analysis revealed that in recent times trade misinvoicing accounts for over 20% of international trade value between developing and developed countries, and trade misinvoicing has been identified as a trade-based money laundering mechanism.

Research limitations/implications
Unavailability of homogenous data relating to trade misinvoicing among developing countries, different methods for measuring trade misinvoicing and inadequate high-quality research papers that led to the use of reports from reputable organisations.

Originality/value
To the best of the author’s knowledge, this study is among the few research works to assess the effects of trade misinvoicing and how it influences money laundering activities in developing countries.
I am feeling so good! Motivations for interacting in online brand communities
Authors: Bilro Ricardo Godinho , Loureiro Sandra Maria Correia 
Published: December 2021

PurposeThis paper focuses on customer engagement in online brand communities (OBCs). Drawing upon self-determination theory (SDT), the research proposes a conceptual model portraying the effect of intrinsic and extrinsic motivations on hedonic and utilitarian rewards, which the authors posit will affect subjective well-being (SWB) and brand advocacy.Design/methodology/approachData collected through a questionnaire completed by 367 members of OBC were employed to test the structural theory using partial least squares-structural equation modelling (PLS-SEM).FindingsThe empirical results reveal that intrinsic motivations significantly and positively affect hedonic and utilitarian rewards, but the same does not apply to extrinsic motivations. The results also confirm that hedonic and utilitarian rewards are significantly related to brand advocacy and SWB, although with different strengths.Originality/valueThis study provides new insights to the emerging research on customer engagement in OBC, including its motivations and rewards for contributing to these communities, from an SDT perspective. In addition, this paper offers a novel approach, by introducing brand advocacy and SWB as consequences of customer engagement in OBCs.
Venture investment under multi-stage incentive model based on fairness concerns
Authors: Shu Yadong , Dai Ying , Ma Zujun , Hu Zhijun 
Published: December 2021

PurposeThis study explores the impact of EN's (venture entrepreneurs, simplified as EN) jealousy fairness concerns coefficient on two-stage venture capital decision-making in cases of symmetrical and asymmetrical information. It discusses the equilibrium solution of two-stage venture.Design/methodology/approachThe principal-agent model was established based on multiple periods, and differentiated contracts were established at different stages. The validity of the models and the contract was verified by numerical simulation.FindingsThe results suggest that with the increase in the EN fairness concerns coefficient, the effort level of EN decreases continuously and decreases faster in the second stage because this is the last stage. The level of VC's (venture capitalist, simplified as VC) effort declines first and then increases; that is, VC will increase the effort level when the fairness concerns coefficient increases to a certain threshold. To motivate EN to pay more effort, VC will increase the incentive to EN in the first stage. However, it will reduce the level of incentive to EN in the second stage. In the limited stage of venture investment, consider that the fairness concerns of EN do not make the profits of EN and VC achieve Pareto improvement simultaneously.Originality/valueFirst, the authors implanted fairness concerns into multi-stage venture capital and discussed the impact of fairness concerns on the efforts and returns of both parties. Second, among the influencing factors of the project output, the authors consider the bilateral efforts of EN and VC, the working capacity of EN, the initial investment scale, and the external uncertain environment.