bluuebunny/crossref_metadata_2025_split huggingface dataset:
Obtaining the effective gripper dimensions for a kiwifruit harvesting robot using kinematic calibration procedures
Authors: Au Chi Kit , Redstall Michael , Duke Mike , Kuang Ye Chow , Lim Shen Hin 
Published: November 2021

Purpose
A harvesting robot is developed as part of kiwifruit industry automation in New Zealand. This kiwifruit harvester is currently not economically viable, as it drops and damages too many kiwifruit in the harvesting task due to the positional inaccuracy of the gripper. This is due to the difficulties in measuring the exact effective dimensions of the gripper from the manipulator. The purpose of this study is to obtain the effective gripper dimensions using kinematic calibration procedures.

Design/methodology/approach
A setup of a constraint plate with a dial gauge is proposed to acquire the calibration data. The constraint plate is positioned above the robot. The data is obtained by using a dial gauge and a permanent marker. The effective dimensions of the gripper are used as error parameters in the calibration process. Calibration is exercised by minimizing the difference between target positions and measured positions iteratively.

Findings
The robot with the obtained effective dimensions is tested in the field. It is found that the fruit drops due to positional inaccuracy of the gripper are greatly reduced after calibration.

Practical implications
The kiwifruit industry in New Zealand is growing rapidly and announced plans in 2017 to double global sales by 2025. This growth will put extra pressure on the labour supply for harvesting. Furthermore, the Covid pandemic and resulting border restrictions have dramatically reduced seasonal imported labour availability. A robotic system is a potential solution to address the labour shortages for harvesting kiwifruit.

Originality/value
For kiwifruit harvesting, the picking envelope is well above the robot; the experimental data points obtained by placing a constraint plate above the robot are at similar positions to the target positions of kiwifruit. Using this set of data points for calibration yields a good effect of obtaining the effective dimension of the gripper, which reduces the positional inaccuracy as shown in the field test results.
Robot hand-eye cooperation based on improved inverse reinforcement learning
Authors: Yu Ning , Nan Lin , Ku Tao 
Published: November 2021

Purpose
How to make accurate action decisions based on visual information is one of the important research directions of industrial robots. The purpose of this paper is to design a highly optimized hand-eye coordination model of the robot to improve the robots’ on-site decision-making ability.

Design/methodology/approach
The combination of inverse reinforcement learning (IRL) algorithm and generative adversarial network can effectively reduce the dependence on expert samples and robots can obtain the decision-making performance that the degree of optimization is not lower than or even higher than that of expert samples.

Findings
The performance of the proposed model is verified in the simulation environment and real scene. By monitoring the reward distribution of the reward function and the trajectory of the robot, the proposed model is compared with other existing methods. The experimental results show that the proposed model has better decision-making performance in the case of less expert data.

Originality/value
A robot hand-eye cooperation model based on improved IRL is proposed and verified. Empirical investigations on real experiments reveal that overall, the proposed approach tends to improve the real efficiency by more than 10% when compared to alternative hand-eye cooperation methods.
Malacca's “Straits Chinese traditional courtyard eclectic style shophouses”: facades' architectural design elements through place identity
Authors: Zwain Akram , Bahauddin Azizi 
Published: November 2021

PurposeThe traditional courtyard shophouses modifications, alterations and deterioration over the years have become a source of concern to major stakeholders. In George Town World Heritage Site Malaysia, studies have shown that the worst hit among its various shophouses are the Straits Chinese traditional courtyard eclectic style shophouses. This paper investigates the traditional courtyard shophouses concerning the role of architectural formation design components, and how this can sustain the place identity of the Straits Chinese typology.Design/methodology/approachThe methodological approach regards the collection of data and analysis of 30 face-to-face interviews and the observation of Lots number 3, 5 and 7, located along Lorong Ikan, George Town World Heritage Site.FindingsIt was found that these Lots express the place identity of the Straits Chinese, and its major exterior architecture components to be observed are the column head (Chi Tou) capital, parapet wall, bressummer beam and ionic column, and gable and gable ends.Research limitations/implicationsThis paper is limited to the role of architectural formation design components. Future research is needed to expand the scope of participant elements via a quantitative approach. This will enhance the validation of findings from this paper.Practical implicationsIt is recommended the use of the proposed checklist to enhance the sustainability of the architectural components regarding the place identity of these styles of shophouses, which provides salutary lessons on how to preserve the heritage buildings. Also, major stakeholders with leading evidence from relevant government agencies should ensure the preservation of these cultural and heritage buildings for the next generation.Social implicationsThis paper found that the family beliefs and social impact were the components that express the place identity of the Straits Chinese.Originality/valueThis paper demonstrates that the role of architectural formation design components regarding place identity of Straits Chinese traditional courtyard eclectic style shophouses cannot be over-emphasised.
Volatility transmission within financial markets during the COVID-19 pandemic: are faith-based investors well off in Tunisia?
Authors: Akinlaso Mustapha Ishaq , Robbana Aroua , Mohamed Nura 
Published: November 2021

Purpose
This paper aims to investigate the risk-return and volatility spillover within the Tunisian stock market during the COVID-19 pandemic analyzing both the Islamic and conventional stocks’ performance.

Design/methodology/approach
Both symmetric (GARCH and GARCH-M) and asymmetric (Threshold GARCH and Exponential GARCH) models are used to analyze the market returns and volatility response. Standard and Poor’s (S&P) index has been used to test both the Islamic and conventional stocks within the Tunisian stock market.

Findings
The findings suggest that both Tunisia Islamic and conventional stock markets are highly persistent; however, the conventional stock index showed a negative return spillover on the Islamic stocks during the pandemic. The conventional stock index has also shown a higher exposure to risk for a lower amount of return, and evidence of potential diversification benefit between both indexes was found during the pandemic, whereas the Islamic market showed a positive leverage effect, indicating a positive correlation between past return and future return; the conventional index implied a negative leverage effect.

Originality/value
The value of this paper emerges in studying three main aspects that are specific to the Tunisian stock market. This includes COVID-19 effect of return spillovers, volatility transmission across both conventional and Islamic stock market within the local financial market.
The Role of Second‐Tier Exchange in Corporate Valuation: Evidence from Korea*
Authors: Choi Heejung , Lee Dong Wook 
Published: November 2021

AbstractUsing data from Korea, we show that the second‐tier exchange—also known as the entrepreneurial market—assigns higher valuations to growth‐oriented (i.e. small yet intangibles‐rich) companies despite their low profitability. Such “growth” valuation is most pronounced among companies in an earlier stage of their life cycle as proxied by dividend payments (i.e. dividend non‐payers). Further analysis confirms that the valuation in the second‐tier exchange facilitates access to capital and investments—especially in intangible assets—by the early‐stage growth companies who would not have made it to public equity markets without the second‐tier exchange.
Examining the impetus for internal CSR Practices with digitalization strategy in the service industry during COVID‐19 pandemic
Authors: Low Mei Peng , Bu Maoliang 
Published: November 2021

AbstractThe year 2020 began with a glimpse into the darkness with the onset of the worldwide COVID‐19 pandemic. An invisible, threatening virus has forced many countries to practice restricted movement and impose lockdowns for the sake of their citizens’ safety and well‐being. In response, many business organizations have implemented various remote‐work arrangements. These arrangements have spurred the use of digitalization strategies and have landed many employees in the vulnerable virtual workplace. With employees facing all these uncertainties and vulnerabilities, their commitment to their workplace could come into question. At the same time, organizations facing tremendous challenges are searching for committed employees to navigate through this turbulent time. From a strategic management perspective, organizations could revisit their internal core competencies to prevail through internal corporate social responsibility (CSR) practices. Meanwhile, the rapidly growing pace of digitalization could further augment organizations’ survival and resilience. This research paper showcases the empirical outcomes of the promising match between internal CSR practices and digitalization strategy; and employees’ organizational commitment during times of crisis. The results reveal that internal CSR practices positively stimulate employees’ organizational commitment, while digitalization strategy intercedes in the nexus between internal CSR practices and affective commitment. The empirical outcomes shed light on business organizations and their ability to take a frugal approach in turbulent times.
Comprehensive analysis of human chorionic membrane extracts regulating mesenchymal stem cells during osteogenesis
Authors: Go Yoon Young , Chae Sung‐won , Song Jae‐Jun 
Published: November 2021

AbstractObjectiveHuman chorionic membrane extracts (CMEs) from placenta are known to be a natural biomaterial for bone regeneration, with their excellent osteogenic efficacy on osteoblasts. However, little is known about the regulatory mechanism involved.Methods and ResultsWe have shown the in vitro and in vivo bone‐forming ability of CME using human osteoblasts and bone defect animal models, suggesting that CME greatly enhances osteogenesis by providing an osteoconductive environment for the osteogenesis of osteoblasts. Proteomic analysis revealed that CME contained several osteogenesis‐related stimulators such as osteopontin, osteomodulin, Thy‐1, netrin 4, retinol‐binding protein and DJ‐1. Additionally, 23 growth factors/growth factor–related proteins were found in CME, which may trigger mitogen‐activated protein kinase (MAPK) signalling as a specific cellular signalling pathway for osteogenic differentiation. Microarray analysis showed four interaction networks (chemokine, Wnt signalling, angiogenesis and ossification), indicating the possibility that CME can promote osteogenic differentiation through a non‐canonical Wnt‐mediated CXCL signalling–dependent pathway.ConclusionsThe results of this study showed the function and mechanism of action of CME during the osteogenesis of osteoblasts and highlighted a novel strategy for the use of CME as a biocompatible therapeutic material for bone regeneration.
An improved exponential metric space approach for C‐mean clustering analysing
Authors: Kumar Rakesh , Joshi Varun , Dhiman Gaurav , Viriyasitavat Wattana 
Published: November 2021

AbstractIn this article, we present two resilient algorithms, the improved alternative hard c‐means (IAHCM) and the improved alternative fuzzy c‐means (IAFCM). We implement the Gaussian distance‐dependent function proposed by Zhang and Chen (D.‐Q. Zhang and Chen, 2004). In some cases, Zhang and Chen's metric distance does not account for the clustering centroid effect predicted by the large value. R* is employed in IAHCM and IAFCM to discover robust results while minimizing its sensitivity. Experiments are conducted using two‐and three‐dimensional data, including Diamond and Iris real‐world data. The results are based on demonstrating the robust simplicity and applicability of the offered algorithms. Similarly, computational complexity is assessed.
Ecological network for species dependent on ancient broadleaf trees using Osmoderma barnabita as a model species: a new approach
Authors: Valainis Uldis , Balalaikins Maksims , Soms Juris , Bastytė‐Cseh Dalia , Gintaras Alvydas , Banelienė Adelė , Augutis Danas , Žukovskienė Marija , Nitcis Māris , Zolovs Maksims 
Published: November 2021

Abstract
Organisms that depend on rare and endangered microhabitats, such as old, hollow trees, have a high conservation value.
To conserve these species, it is necessary to apply methods that identify habitats suitable for their survival.
Until now, a comprehensive method has not been developed for predicting the occurrence of species associated with old, hollow trees.
Here, we developed criteria to identify habitats for organisms associated with old, hollow trees, using Osmoderma barnabita as a model species.
We used hexagonal tessellation to identify suitable habitats for hermit beetle.
Criteria for predicting the occurrence of a hermit beetle were applied in practise, and as result 47.56% of the known hermit beetle localities coincided with the hexagons where the probability of occurrence of the species was the highest. Based on these results, an ecological network was created for species dependency on old, hollow trees, using the hermit beetle as a model species.
The proposed approach makes it possible to plan and implement environmental protection measures for species living in territories spanning several countries. In this work, we propose a method to identify species occurrence in core areas and to determine ecological corridors and gaps. This method could tailor conservation planning efforts.
Talking to Art and Design Students at Home: Evaluating the Differences in Student Engagement Online
Authors: Marshalsey Lorraine 
Published: November 2021

AbstractIn 2020, because of a pandemic and the subsequent necessary and immediate pivot to online and distance education, physical art and design studio learning dispersed and instantly became (and, it can be argued, irreversibly) remote via a range of university‐approved digital platforms. This article examines a study conducted after distance education had been universally implemented in one college of art in Australia. The data analysis highlighted inconsistency across art and design student engagement. Generally, students who were situated in the later years of their degree programmes fared better than first year students new to the processes, practices and socialisation of studio learning. This article evaluates the differences in student engagement online and proposes strategies for reflective teaching when interacting with students remotely.
Identification of liver‐derived bone morphogenetic protein (BMP)‐9 as a potential new candidate for treatment of colorectal cancer
Authors: Cai Chen , Itzel Timo , Gaitantzi Haristi , de la Torre Carolina , Birgin Emrullah , Betge Johannes , Gretz Norbert , Teufel Andreas , Rahbari Nuh N. , Ebert Matthias P. , Breitkopf‐Heinlein Katja 
Published: November 2021

AbstractColorectal cancer (CRC) is a high‐incidence malignancy worldwide which still needs better therapy options. Therefore, the aim of the present study was to investigate the responses of normal or malignant human intestinal epithelium to bone morphogenetic protein (BMP)‐9 and to find out whether the application of BMP‐9 to patients with CRC or the enhancement of its synthesis in the liver could be useful strategies for new therapy approaches. In silico analyses of CRC patient cohorts (TCGA database) revealed that high expression of the BMP‐target gene ID1, especially in combination with low expression of the BMP‐inhibitor noggin, is significantly associated with better patient survival. Organoid lines were generated from human biopsies of colon cancer (T‐Orgs) and corresponding non‐malignant areas (N‐Orgs) of three patients. The N‐Orgs represented tumours belonging to three different consensus molecular subtypes (CMS) of CRC. Overall, BMP‐9 stimulation of organoids promoted an enrichment of tumour‐suppressive gene expression signatures, whereas the stimulation with noggin had the opposite effects. Furthermore, treatment of organoids with BMP‐9 induced ID1 expression (independently of high noggin levels), while treatment with noggin reduced ID1.In summary, our data identify the ratio between ID1 and noggin as a new prognostic value for CRC patient outcome. We further show that by inducing ID1, BMP‐9 enhances this ratio, even in the presence of noggin. Thus, BMP‐9 is identified as a novel target for the development of improved anti‐cancer therapies of patients with CRC.
Transformational leadership as a mediator between work–family conflict, nurse‐reported patient safety outcomes, and job engagement
Authors: Labrague Leodoro J. , Obeidat Arwa Atef 
Published: November 2021

AbstractPurposeWork–family conflict (WFC) is an important issue in nursing administration and management that is associated with reduced work effectiveness and patient safety issues. To date, very few studies have attempted to explain the mechanisms underlying these relationships. The aim of this study was to determine the influence of work–family conflict (WFC) on patient safety outcomes and job engagement via the intermediary role of transformational leadership (TL).DesignCross‐sectional study.MethodsSeven hundred fifty‐four nurses from 10 acute care hospitals in the Philippines were included in this cross‐sectional study.FindingsA higher perception of WFC was associated with increased adverse events, reduced quality of care and decreased job engagement. WFC was indirectly associated with quality of care, adverse events and job engagement through the intermediary of TL.ConclusionsThe results of this study underscore the important role of nurse managers’ TL in sustaining work–family balance and, in turn, improving patient safety outcomes and enhancing job engagement among nurses.Clinical relevanceInstitutional measures to foster patient safety outcomes and sustain the nursing workforce should involve enhancing nurse managers’ leadership behaviors through theory‐driven interventions, periodic leadership assessment, and implementation of leadership development activities. WFC may be addressed by creating empowering work conditions, providing adequate coaching and mentorship to nurses, and implementing work–family friendly policies in the workplace.
Food Insecurity and Its Association With Alcohol and Other Substance Use Among High School Students in the United States
Authors: Turner Victoria E. , Demissie Zewditu , Sliwa Sarah A. , Clayton Heather B. 
Published: November 2021

ABSTRACTBACKGROUNDStudies show that food insecurity is associated with adverse health behaviors for children and adults. However, published data among adolescents are limited. The objective of this study was to examine the association between food insecurity and substance use behaviors among US high school students.METHODSData from the 2017 Youth Risk Behavior Survey in 10 states were combined to examine the association between household food insecurity and adolescent use of alcohol, marijuana, prescription opioid misuse, and illicit drugs using logistic regression.RESULTSAmong surveyed respondents, 12.3% of high school students reported experiencing food insecurity. In unadjusted analyses, the prevalence of substance use was higher among students with food insecurity compared to food secure students: current binge drinking (16.2% vs 11.5%), current marijuana use (24.0% vs 16.2%), lifetime prescription opioid misuse (21.3% vs 12.6%), and lifetime use of illicit drugs (12.3% vs 5.0%) (all p < .05). In adjusted models, food insecurity was associated with lifetime prescription opioid misuse and lifetime use of illicit drugs (aPR 1.38 and 1.70, respectively).CONCLUSIONStudents with food insecurity are a potential group at a higher rise of substance misuse and may benefit from prevention programs designed to address their needs.
Outcome of Surgical Management of Hemophilic Pseudotumor: Review of 10 Cases from Single‐Center
Authors: Yao Yun‐feng , Gao Qiang , Li Jia‐le , Xue Chen‐xi , Fang Wang , Jing Jue‐hua 
Published: November 2021

ObjectiveTo evaluate the operative methods and clinical results of surgical treatment in a case series of 10 patients with hemophilic pseudotumors.MethodsTen patients with hemophilic pseudotumors who received surgical resection treatment in our hospital from October 2017 to June 2020 were retrospectively reviewed. All patients were hemophilia A (factor VIII deficiency).The age range was 20–51 years. Preoperative imaging examination revealed the size of irregular mass from 8.2 cm× 3.3 cm× 2.3 cm to 22.3 cm× 15.5 cm× 17.0 cm. With the supplementary of recombinant coagulation factor VIII, five cases received complete resection; one received resection and skin grafting; one received cytoreduction surgery as the pseudotumor closing to iliac vessel and nerve; three cases received complete resection and construction as bone destruction. The perioperative variables were recorded and all the patients were followed in the outpatient clinic. Clinical and radiological assessments were conducted.ResultsIn these patients, the average intraoperative blood loss volume was 783.1 mL (range, 240–2100 mL). Six patients received blood transfusion during perioperative period. The average duration of surgery was 140.7 min (range, 110–240 min). All wounds healed smoothly and there was no infection or chronic sinus formation. The average length of hospital stay was 16.3 days (range, 12–25 days). There is no iatrogenic vascular nerve injury in our series. Complete follow‐up was performed in all patients. Mean follow‐up duration was 14.2 months (range, 6–26 months). One patient with pseudotumor in the thigh had a recurrence 1 year after operation, then secondary operation was performed. In three cases who received complete resection and construction, patient 8 obtained bone graft and late fixation. X‐ray examination showed bone formation in the lesion at the 2‐year follow‐ups after operation. Patient 9 underwent knee replacement, his left knee showed flexion deformity in preoparation. At the last follow‐up, range of motion was improved from 0° to 40° compared with preoperative status. Patient 10 had pseudotumor in the distal femur, received long bone graft and intramedullary nail fixation.ConclusionsSurgical resection for hemophilic pseudotumors is an effective and safe method. The choice of surgical procedure must be individualized according to the localization and progress of pseudotumor.