bluuebunny/crossref_metadata_2025_split huggingface dataset:
Detection and prevention of black-hole and wormhole attacks in wireless sensor network using optimized LSTM
Authors: Pawar Mohandas V. , J. Anuradha 
Published: June 2021

Purpose
This study aims to present a novel system for detection and prevention of black hole and wormhole attacks in wireless sensor network (WSN) based on deep learning model. Here, different phases are included such as assigning the nodes, data collection, detecting black hole and wormhole attacks and preventing black hole and wormhole attacks by optimal path communication. Initially, a set of nodes is assumed for carrying out the communication in WSN. Further, the black hole attacks are detected by the Bait process, and wormhole attacks are detected by the round trip time (RTT) validation process. The data collection procedure is done with the Bait and RTT validation process with attribute information. The gathered data attributes are given for the training in which long short-term memory (LSTM) is used that includes the attack details. This is used for attack detection process. Once they are detected, those attacks are removed from the network using the optimal path selection process. Here, the optimal shortest path is determined by the improvement in the whale optimization algorithm (WOA) that is called as fitness rate-based whale optimization algorithm (FR-WOA). This shortest path communication is carried out based on the multi-objective function using energy, distance, delay and packet delivery ratio as constraints.

Design/methodology/approach
This paper implements a detection and prevention of attacks model based on FR-WOA algorithm for the prevention of attacks in the WSNs. With this, this paper aims to accomplish the desired optimization of multi-objective functions.

Findings
From the analysis, it is found that the accuracy of the optimized LSTM is better than conventional LSTM. The energy consumption of the proposed FR-WOA with 35 nodes is 7.14% superior to WOA and FireFly, 5.7% superior to grey wolf optimization and 10.3% superior to particle swarm optimization.

Originality/value
This paper develops the FR-WOA with optimized LSTM detecting and preventing black hole and wormhole attacks from WSN. To the best of the authors’ knowledge, this is the first work that uses FR-WOA with optimized LSTM detecting and preventing black hole and wormhole attacks from WSN.
Understanding SME suppliers' response to supply chain finance: a transaction cost economics perspective
Authors: de Goeij Christiaan , Gelsomino Luca Mattia , Caniato Federico , Moretto Antonella Maria , Steeman Michiel 
Published: June 2021

PurposeReverse factoring (RF) is one of the most prevalent supply chain finance (SCF) solutions. This study challenges the view that suppliers accept financially attractive reverse factoring offers (RFOs) and reject financially unattractive ones. Specifically, it focuses on small and medium enterprise (SME) suppliers and how transaction cost economics (TCE) factors affect their decision.Design/methodology/approachThe authors study eight cases of RFOs, interviewing suppliers, buyers and financial service providers (FSPs) and using several sources of private and publicly available secondary data.FindingsIn five out of eight RFOs, suppliers either accepted unattractive offers or rejected attractive ones. Bounded rationality and opportunism seem to explain such misalignment, while asset specificity and frequency play a minor role in decisions.Research limitations/implicationsThe study shows the need for further investigation linking analytical assessment of SCF benefits with qualitative factors.Practical implicationsSME suppliers cannot assume an RFO will benefit them. They must critically evaluate their buyers' offers, ideally with self-awareness towards how the abovementioned factors might affect their decisions. For buyers and banks, this study gives clear insights on how to approach SME suppliers to avoid rejection of financially attractive RFOs.Originality/valueThis contribution analyses financial attractiveness of RFOs in conjunction with qualitative factors, including rejected RFOs and without assuming that RFOs are financially attractive for suppliers. This is original and relevant for both research and practice, since it extends the understanding of the supplier response to RFOs, thanks to the consideration of TCE factors.
Analyzing the operational barriers of government-supported healthcare supply chain
Authors: Dixit Anuj , Routroy Srikanta , Dubey Sunil Kumar 
Published: June 2021

PurposeThe purpose of this study is to develop a methodology for the identification, categorization and prioritization of operational government-supported healthcare supply chain barriers (GHSCBs).Design/methodology/approachThis study develops a theoretical background for identifying and segregating relevant GHSCBs and proposes a 5W2H (a Toyota production system) with fuzzy DEcision MAking Trial and Evaluation Laboratory (DEMATEL) embedded approach to quantify the causal–effect relationships among the identified operational GHSCBs.FindingsSeven GHSCBs (i.e. uncertainty of demand management, lack of continuous improvement and learning, lack of deadline management, lack of social audit, warehousing equipment unavailability, human resource shortage and inadequate top level monitoring) were identified as significant cause group where the government, top management and decision-makers of government-supported healthcare supply chain (GHSC) have to put efforts.Research limitations/implicationsThe results obtained are specific to the GHSC of Indian perspective, which could be extended to global context. However, the proposed approach can be a base and provide a platform to understand and analyze the interactions among GHSCBs.Practical implicationsThe proposed methodology will show the appropriate areas for allocating efforts and resources to mitigate the impact of GHSCBs for successful implementation of healthcare supply chain.Originality/valueAccording to best of the authors' knowledge, this is the first study of operational barrier for GHSC in India in specific. The use of 5W2H embedded fuzzy DEMATEL approach for the development and analysis of the theoretical framework of Indian GHSCBs is unique in barrier literature.
Perceived usability of local government (LG) financial statements by local councillors: comparative study of Finland and Germany
Authors: Haustein Ellen , Lorson Peter C. , Oulasvirta Lasse Olavi , Sinervo Lotta-Maria 
Published: June 2021

PurposeThis paper studies the usability of LG financial statements as perceived by local councillors. By drawing on a comparative view of two countries with different periods of accrual accounting use in the public sector, the authors investigate how local councillors assess the usability of LG financial statements in order to question accounting reform success. Determinants that influence the usability assessment are explored.Design/methodology/approachExploratory design: data were collected from questionnaires with 24 local councillors from five Finnish local governments (LGs) and 30 local councillors from six German LGs. An adjusted variant of the system usability scale was analysed with descriptive statistics and non-parametric group comparisons.FindingsIn both countries, the usability assessment of financial statements seems to be positive, indicating a successful reform process. In Finland, where the accrual government accounting reform has had a longer time to settle in, councillors seem to assess usability only partially better than German councillors. Several determinants of the usability assessment were detected, such as size and debt level of the LG as well as local councillors' gender, political orientation and education. Generally, councillors need more assistance and training in using financial statements.Originality/valueThe study is the first to conduct a quantitative assessment of the usability of LG financial statements as perceived by councillors. The system usability scale was adjusted to a public sector reporting context. The paper adopts a transnational comparative approach.
Does CFO accounting expertise matter to corporate social responsibility disclosure in 10-Ks?
Authors: Guo Jun , Kim Sungsoo , Yu Yang , Kim Jung Yeun (June) 
Published: June 2021

PurposeThe study aims to understand the role of accountant in corporate social responsibility (CSR) practice.Design/methodology/approachIn this study, the authors examine whether and how chief financial officer (CFO) accounting expertise and previous work experience influence voluntary CSR disclosure, using textual analysis and natural language processing (NLP) techniques. The authors find that firms' CFOs with accounting expertise disclose more CSR issues in their 10-K reports. Overall, this study provides evidence of the impact of CFOs' professional and personal attributes on voluntary CSR disclosure in corporate annual reports. This study has important implications to investors and policy makers in the context of CSR disclosure regulations in annual reports.FindingsOverall, this study provides evidence of the impact of CFOs' professional and personal attributes on voluntary CSR disclosure in corporate annual reports. This study has important implications to practitioners and policy makers in the context of CSR disclosure regulations in annual reports.Research limitations/implicationsThere is an inherent limitation of textual analysis as the tool tries to read key words from the text.Practical implicationsThis finding is useful for policy maker and investors as CSR is known to have impact on the share price.Originality/valueThis paper is the first attempt to find out accountants' role in CSR activities, which has not been examined in the prior literature.
Cost efficiency, innovation and financial performance of banks in Indonesia
Authors: Khalifaturofi'ah Sholikha Oktavi 
Published: June 2021

PurposeThis study aims to examine the effect of financial innovation, financial ratios, cost efficiency and good corporate governance on the financial performance of banks in Indonesia.Design/methodology/approachThe data in this study are in the form of annual financial statements of conventional banks in Indonesia. The effect of cost efficiency, innovation and financial performance of banks in Indonesia is expected to be evident in 2009–2018. The research method used is the panel regression method.FindingsThe results show that financial innovation affects the financial performance of banks. Cost efficiency has a negative effect on the financial performance of banks. Financial ratio, which is proxied by the capital adequacy ratio (CAR) and loan to deposit ratio, has a positive effect on return on asset and net interest margin. Financial ratio, which is proxied by nonperforming loan and equity to total assets, has a negative effect on return on asset and return on equity. Good corporate governance (GCG), which is proxied by the proportion of managerial ownership (PMO), does not affect the financial performance of banks, whereas GCG, which is proxied by the proportion of independent board of directors, has a negative and significant effect on the financial performance of banks in Indonesia.Practical implicationsThese results are a warning to bankers and the government to be cautious when formulating a strategy for the financial performance of banking.Originality/valueCost efficiency and financial innovation are important for the financial performance of banking. However, the possible impact of cost efficiency and financial innovation in Indonesia does not have a significant impact. The study uses static panel estimation techniques to analyze the data.
Study of awareness, adoption and experience of telemedicine technology services; perspectives during coronavirus (COVID-19) pandemic crisis and associated economic lockdown in India
Authors: Bhattacharyya Som Sekhar , Mandke Prasad Vidyasagar 
Published: June 2021

Purpose
The purpose of this paper is to study the phenomenon of abrupt shift by both doctors and patients to telemedicine during the coronavirus (COVID-19) pandemic and associated economic lockdown in India. The study explored various drivers of telemedicine technology awareness, adoption and usage. These drives were studied from both the doctors and the patients’ perspectives using the Push–Pull–Mooring (PPM) theoretical model.

Design/methodology/approach
An exploratory qualitative research was carried out with 24 doctors and 32 patients. This research was conducted in major urban cities of India. It was carried out during the economic lockdown due to the COVID-19 pandemic. The data was collected based upon a semi-structured open-ended questionnaire using telephonic interviews. Once thematic saturation was achieved, thematic content analysis was conducted. Finally, the themes were classified and analyzed using the PPM theoretical model

Findings
The data analysis indicated that there was the presence of all three factors, namely, push, pull and mooring. For the doctors, pull and push factors were more substantive than mooring factors. Although for the patients push and mooring factors were more important and pressing than pull factors.

Research limitations/implications
This study was conducted during the COVID-19 pandemic and associated economic lockdown in India. The interview respondents were located only in urban India. Future studies could be conducted to explore similarities and differences in telemedicine adoption patterns during non-crisis times vis-a-vis crisis times in urban and rural settings.

Practical implications
The insights from this study could be used by medical service providers to leverage telemedicine technology to improve the business model, service delivery, pricing strategy, value proposition and behavioral characteristics. Patients on the other hand could gather perspectives regarding how best to use telemedicine technological services.

Originality/value
The authors provided an integrated perspective regarding telemedicine technology awareness, adoption and usage in an emerging economy of India during the critical times of the COVID-19 pandemic crisis and the associated prolonged economic lockdown. This was one of the first studies that applied PPM theory for telemedicine adoption
How do governance and relational rents evolve during the maturity stages of supply chains?
Authors: Cislaghi Tatiane Pellin , Wegner Douglas , Vieira Luciana Marques 
Published: June 2021

Purpose
The purpose of this paper is to analyse how the use of governance mechanisms in buyer-supplier relationships in the supply chain (SC) are related to the maturity of relationships and the generation of relational rents.

Design/methodology/approach
Several studies have analysed interorganisational governance in SCs. However, to the best of the knowledge, no study has focussed on the use of different types of governance mechanisms through maturity stages in buyer-supplier relationships and as a consequence, its relational rents. The aim of this paper is to analyse how the use of governance mechanisms in buyer-supplier relationships in the SC are related to the maturity of relationships and the generation of relational rents. To achieve this goal, this paper carried out multiple case studies.

Findings
The results show that changes in the use of formal and informal governance mechanisms contribute to the generation of relational rents and relationship continuity. This paper identified that a reduction in power asymmetry by the buyer may allow for the greater use of informal governance mechanisms and greater relational rents. Moreover, the paper highlights that a relationship might advance or regress throughout the maturity stages, according to the commitment of the buyer to maintain the relationship with the supplier.

Research limitations/implications
The study has the limitation of having chosen polar case studies in the organic sector in Brazil to illustrate the theoretical discussion and propose a model to be tested via further research. This study considered institutional factors in the analysis that might not affect dyadic relationships in other sectors and countries.

Practical implications
As a managerial contribution, the results indicate that when the buyer uses both kinds of mechanisms complementarily and encourages the utilisation of informal mechanisms, relationships become more resilient to adverse events.

Social implications
The study also contributes towards valuing the role of organic farmers and encourages the government and business community to reflect on the challenges and opportunities in the sector.

Originality/value
Based on four propositions created by evaluating both the empirical data and previous literature, this paper proposes a buyer-supplier relationship maturity model rather than an overall SC maturity model. This paper also elaborated on the arguments of Dyer et al. (2018), proposing a causal explanation of how a relationship might advance or regress throughout the maturity stages, according to the commitment of the buyer to maintain the relationship with the supplier using governance mechanisms. This change in maturity stages, in turn, affects relational rents for the dyad.
Semen: A modulator of female genital tract inflammation and a vector for HIV‐1 transmission
Authors: Jewanraj Janine , Ngcapu Sinaye , Liebenberg Lenine J. P. 
Published: June 2021

AbstractIn order to establish productive infection in women, HIV must transverse the vaginal epithelium and gain access to local target cells. Genital inflammation contributes to the availability of HIV susceptible cells at the female genital mucosa and is associated with higher HIV transmission rates in women. Factors that contribute to genital inflammation may subsequently increase the risk of HIV infection in women. Semen is a highly immunomodulatory fluid containing several bioactive molecules with the potential to influence inflammation and immune activation at the female genital tract. In addition to its role as a vector for HIV transmission, semen induces profound mucosal changes to prime the female reproductive tract for conception. Still, most studies of mucosal immunity are conducted in the absence of semen or without considering its immune impact on the female genital tract. This review discusses the various mechanisms by which semen exposure may influence female genital inflammation and highlights the importance of routine screening for semen biomarkers in vaginal specimens to account for its impact on genital inflammation.
The management of women with ductal carcinoma in situ of the breast in Australia and New Zealand between 2007 and 2016
Authors: Omling Sofia , Houssami Nehmat , McGeechan Kevin , Zackrisson Sophia , Jacklyn Gemma , Walters David , Barratt Alexandra , Farber Rachel 
Published: June 2021

AbstractBackgroundThe incidence of detected ductal carcinoma in situ (DCIS) continues to increase and now accounts for 14% of all breast cancer, and 20%–25% of screen‐detected cases. Treatment trends of DCIS are important in order to inform the ongoing debate about possible overdiagnosis and overtreatment, but have not been investigated for over a decade in Australia and New Zealand. Against this background, we aimed to describe the temporal trends in management of DCIS in Australian and New Zealander women.MethodsUsing the BreastSurgANZ Quality Audit (BQA) database, we conducted a descriptive study of the trends of management of DCIS in Australia and New Zealand from 2007 to 2016. We assessed the frequency of surgical treatments, adjuvant therapies, and axillary surgery conducted in women with pure DCIS.ResultsThere were 17 883 cases of pure DCIS in 2007–2016 in Australia and New Zealand recorded in the BQA database. The treatment patterns were consistent with no changes over time. The most common surgical treatment was breast‐conserving surgery (66%), followed by mastectomy (37%), and 36% of women with DCIS received sentinel node biopsy (SNB).ConclusionThe clinical management of women diagnosed with DCIS in Australia and New Zealand, appears stable over time. A substantial proportion of women with DCIS receive SNB and this aspect of surgical care warrants further exploration to determine whether it represents appropriate care. These results, alongside the outcomes of the ongoing clinical trials on the management of DCIS, will help inform if any changes to best practice treatment are required.
Systematic review and meta‐analysis found that malnutrition was associated with poor cognitive development
Authors: Pizzol Damiano , Tudor Florina , Racalbuto Vincenzo , Bertoldo Alessandro , Veronese Nicola , Smith Lee 
Published: June 2021

AbstractAimMalnutrition is a major public health issue that has been associated with high susceptibility for impaired brain development and mental functioning. However, to date studies on this topic have not been collated and appraised. This systematic review and meta‐analysis investigated the association between malnutrition and cognitive development.MethodsWe searched the MEDLINE, Scopus, CINAHL, Embase PsycINFO and Cochrane Library databases in English up to 8 December 2020. All studies reporting an association between nutritional status and cognitive development were included. p values of less than 0.05 were considered statistically significant and the results are reported as standardised mean differences (SMD), 95% confidence intervals (95%) and I2 statistics.ResultsWe included 12 studies comprising 7,607 participants aged 1 to 12 years. Children with malnutrition had worse scores than controls for the Wechsler Intelligence Scale (SMD −0.40; 95% CI −0.60 to −0.20; p < 0.0001; I2 77.1%), the Raven's Coloured Progressive Matrices (SMD −3.75; 95% CI −5.68 to −1.83; p < 0.0001; I2 99.2%), visual processing (SMD −0.85; 95% CI −1.23 to −0.46; p 0.009; I2 11.0%) and short memory (SMD 0.85; 95% CI −1.21 to −0.49; p < 0.0001; I2 0%) tests.ConclusionNormal cognitive development requires access to good and safe nutrition.
The earliest lacquerwares of China were discovered at Jingtoushan site in the Yangtze River Delta
Authors: Zhai Kuanrong , Sun Guoping , Zheng Yunfei , Wu Meng , Zhang Bingjian , Zhu Longguan , Hu Qi 
Published: June 2021

AbstractIn the Yangtze River Delta, natural lacquer has been used as coating and adhesive since the Neolithic. At Jingtoushan Neolithic site, the earliest, deepest buried prehistoric shell mound site discovered in China's coastal areas, where stratigraphic age lies between 7,800–8,300 cal BP, we discovered the earliest lacquerwares of China. The relics are a piece of dowelled wood and an oblate wooden stick. The black coatings on the two relics were studied by using non‐destructive infrared analysis, pyrolysis‐gas chromatography/mass spectrometry (Py‐GC/MS), and enzyme‐linked immune sorbent assay (ELISA), and the analysis determined that black coating on the two relics is natural lacquer. This discovery refreshes the history of natural lacquer used by humans in the Yangtze River Delta to more than 8,000 years ago and also complements the history of organic coatings used during the Neolithic period in China.