bluuebunny/crossref_metadata_2025_split huggingface dataset:
Artificial intelligence in mobile communication: A Survey
Authors: Mao Yingchi , Pranolo Andri , Hernandez Leonel , Wibawa Aji Prasetya , Nuryana Zalik 
Published: January 2022

Abstract
In this paper, we elaborate on artificial intelligence (AI) techniques used to improve the performance of mobile communication. This article describes brief AI approaches in mobile communication, several classics AI techniques, and the current AI approaches in wireless communication. The techniques contain fuzzy logic, neural networks, reinforcement learning, and AI techniques implemented on mobile communication. Some keys or terms challenges between AI and future mobile communication, not only 5G generation issues but also how the sixth generation (6G) of mobile networks will be driven to give stable networks and service types on huge mobile devices and data.
The effects of surface roughness on the flow in multiple connected fractures
Authors: Aghajannezhad Pouria , Sellier Mathieu 
Published: January 2022

Abstract
We present a novel computationally efficient approach for investigating the effect of surface roughness on the fluid flow in small discrete fracture networks at low Reynolds number. The effect of parallel and series fracture arrangements on the flow rate and hydraulic resistance was studied numerically by patching Hele-Shaw (HS) cells to represent the network. In this analysis, the impact of surface roughness was studied in different arrangements of the network. For this aim, four models with different sequences of fracture connections were studied. The validity of the models was assessed by comparing the results with solutions of the full Navier–Stokes equations (NSE). The approximate hydraulic resistance and flow rate calculated by the HS method were found to be in good agreement with the NSE (less than 7% deviation). Results suggest a quadratic relationship between the network hydraulic resistance and the joint roughness coefficient (JRC). Notably, an increase in surface roughness caused a growth in hydraulic resistance and a fall in flow rate. Further insight was provided by drawing an analogy between resistors in electrical circuits and fractures in networks.
General practice to enhance bast fiber composite properties for state of art applications – A Review
Authors: Krishnasamy Prabu , Rajamurugan G , Muralidharan B , Krishnaiah Ravi 
Published: January 2022

Abstract
Composite materials are revolutionizing to realize the demanding needs of aeronautical, automobile, construction, chemical, and biomedical applications. The natural fiber composite is chosen as one of the best choices among composites due to its sustainable goods like eco-friendly nature, better properties and Greenhouse gas (GHG) balance. Furthermore, the bast fiber composites are identified as promising industrial composites based on the availability, strength-to-weight ratio, manufacturing ease, and economics for commercialization. However, product quality and production volume significantly influence commercial adoption of the bast fiber composites. Especially the product quality primarily suffers due to climatic conditions, damage while harvesting, extraction method, retting issues, and extraction location. Consequently, this review aims to provide an overview of the bast fibers & their composites, properties enhancement techniques, overall mechanical behaviours and thermal stability with suitable applications.
Hybrid quantum-classical convolutional neural network model for COVID-19 prediction using chest X-ray images
Authors: Houssein Essam H , Abohashima Zainab , Elhoseny Mohamed , Mohamed Waleed M 
Published: January 2022

Abstract
Despite the great efforts to find an effective way for coronavirus disease 2019 (COVID-19) prediction, the virus nature and mutation represent a critical challenge to diagnose the covered cases. However, developing a model to predict COVID-19 via chest X-ray images with accurate performance is necessary to help in early diagnosis. In this paper, a hybrid quantum-classical convolutional neural network (HQ-CNN) model using random quantum circuits as a base to detect COVID-19 patients with chest X-ray images is presented. A collection of 5445 chest X-ray images, including 1350 COVID-19, 1350 normal, 1345 viral pneumonia, and 1400 bacterial pneumonia images, were used to evaluate the HQ-CNN. The proposed HQ-CNN model has achieved higher performance with an accuracy of 98.6% and a recall of 99% on the first experiment (COVID-19 and normal cases). Besides, it obtained an accuracy of 98.2% and a recall of 99.5% on the second experiment (COVID-19 and viral pneumonia cases). Also, it obtained 98% and 98.8% for accuracy and recall, respectively, on the third dataset (COVID-19 and bacterial pneumonia cases). Lastly, it achieved accuracy and recall of 88.2% and 88.6%, respectively, on the multiclass dataset cases. Moreover, the HQ-CNN model is assessed with the statistical analysis (i.e. Cohen’s Kappa and Matthew correlation coefficients). The experimental results revealed that the proposed HQ-CNN model is able to predict the positive COVID-19 cases.
Marstonian Authorship: The Poems, Plays, and Masque
Authors: Cheney Patrick 
Published: January 2022

Abstract
This essay challenges the critical practice of focusing on Marston as principally a playwright. To do so, the essay recalls the mainframe of authorship during the 1590s and early 1600s, when a new breed of author emerges: the poet-playwright. The key figures are Marlowe, Shakespeare, and Jonson. Within this literary circuit, we may place Marston, who redefines the poet-playwright’s authorship as a strange liberty at once satiric and sublime. Marston’s literary career begins with two printed poems: Pygmalion’s Image and Certain Satires and The Scourge of Villainy (1598). After the 1599 Bishops’ Ban, Marston turns to theatre, producing 11 plays. Yet Marston does not simply turn from poems to plays. In 1601, he produces Jack Drum’s Entertainment and four poems for Love’s Martyr. Moreover, in the masque-form of The Entertainment of Alice, Marston combines the poetic and the dramatic. More notably, inside the fictions of his plays, he uses a dual-genre authorship as a structuring device. Hence, in The Malcontent he divides the plot between two poet-playwright figures, Malevole and Mendoza, who compete for what Marston seeks: authorial ‘liberty’ in a national space that Spenser had romanticized as ‘Elizium’. Thus, it is a mistake both to under-privilege Marston’s poems and to assume that he left poetry behind after the Bishops’ Ban. Rather, Marston’s authorship is salient for transposing a distinctive Elysian brand of sublime satire from the poems to the plays and for scripting their generic interpenetration as a new form of English freedom.
Geographic Variation in HIV Testing Among Transgender and Nonbinary Adults in the United States
Authors: Tordoff Diana M. , Zangeneh Sahar , Khosropour Christine M. , Glick Sara N. , McClelland Raymond Scott , Dimitrov Dobromir , Reisner Sari , Duerr Ann 
Published: January 2022

Background:
Transgender and nonbinary (TNB) populations are disproportionately affected by HIV and few local health departments or HIV surveillance systems collect/report data on TNB identities. Our objective was to estimate the prevalence of HIV testing among TNB adults by US county and state, with a focus on the Ending the HIV Epidemic (EHE) geographies.

Methods:
We applied a Bayesian hierarchical spatial small area estimation model to data from the 2015 US Transgender Survey, a large national cross-sectional Internet-based survey. We estimated the county- and state-level proportion of TNB adults who ever tested or tested for HIV in the last year by gender identity, race/ethnicity, and age.

Results:
Our analysis included 26,100 TNB participants with valid zip codes who resided in 1688 counties (54% of all 3141 counties that cover 92% of the US population). The median county-level proportion of TNB adults who ever tested for HIV was 44% (range 10%–80%) and who tested in the last year was 17% (range 4%–44%). Within most counties, testing was highest among transgender women, black respondents, and people aged ≥25 years. HIV testing was lowest among nonbinary people and young adults aged <25 years. The proportion of TNB adults who tested within the last year was very low in most EHE counties and in all 7 rural states.

Conclusions:
HIV testing among TNB adults is likely below national recommendations in the majority of EHE geographies. Geographic variation in HIV testing patterns among TNB adults indicates that testing strategies need to be tailored to local settings.
99mTc-MDP Bone Scintigraphy and SPECT/CT of Extensive Subcutaneous Calcification in the Setting of Cosmetic-Induced Lipogranulomatosis
Authors: Viragh Karoly , Khoshchehreh Mahdi , Zung Thomas , Ni Chiayi 
Published: January 2022

Abstract
A 56-year-old woman with history of cosmetic buttock augmentation via mineral oil injection 20+ years ago presented with extensive abdominopelvic skin induration and hypercalcemia. The 99mTc-MDP bone scintigraphy performed for hypercalcemia revealed marked heterogeneous radiotracer activity partially obscuring the skeleton. Subsequent SPECT/CT demonstrated that the radiotracer activity was associated with exclusively subcutaneous calcification, the extent of which far exceeded the originally augmented gluteal regions. After extensive workup including tissue biopsy, the final diagnosis was subcutaneous calcification and hypercalcemia secondary to cosmetic injection–related sclerosing lipogranulomatosis, which is a very rare complication of cosmetic augmentation.
18F-FDG PET/CT in Bilateral Breasts Metastasis From Ovarian Carcinoma
Authors: Karanth Suman S. , Malik Dharmender , Khanna Gaurav , Sen Ishita B. , Manda Divya , Raina Vinod 
Published: January 2022

AbstractOvarian carcinomas generally metastasize within the peritoneal cavity due to exfoliation of malignant cells from primary tumor. Metastasis to the breasts is an unusual event and may mimic primary neoplastic disease. Usually, breast metastasis presents as a single isolated, well-circumscribed soft tissue lesion, and serous papillary carcinoma is the most common type of ovarian tumor that can metastasize to the breast. Concurrent bilateral breast metastasis is rare event. We present a follow-up case of metastatic carcinoma ovary, demonstrating FDG-avid soft tissue density masses in the bilateral breast parenchyma along with bilateral axillary lymphadenopathy, biopsy of which revealed metastatic deposits from carcinoma ovary.
FDG PET/CT Demonstrated Epstein-Barr Virus–Associated Leiomyosarcoma in a Pediatric Patient With Wiskott-Aldrich Syndrome
Authors: Li Cuicui , Yang Xu , Lu Xia , Wang Wei , Yang Jigang 
Published: January 2022

Abstract
A 7-year-old boy with Wiskott-Aldrich syndrome underwent FDG PET/CT to evaluate hepatic lesions revealed by an ultrasound. The images demonstrated multiple hypermetabolic lesions in the liver, lung, and lymph nodes. Biopsy of liver and lymph nodes demonstrated Epstein-Barr virus–associated leiomyosarcoma.
Incidental Uptake of 18F-Fluciclovine by Type AB Thymoma
Authors: Somnay Vishal , Dalal Ishani 
Published: January 2022

Abstract
Biochemical recurrence of prostate cancer, detected by a rising PSA, may reflect intraprostatic or extraprostatic recurrence. 18F-Fluciclovine (Axumin), a synthetic amino acid substrate in tumor metabolism, has frequently been used for to localize recurrent prostate cancers. We present a 71-year-old man with biochemical recurrence of prostate cancer but no convincing imaging findings on 18F-fluciclovine PET/CT. Of note, however, was an incidental uptake within the anterior mediastinum, which was found on biopsy to be a type AB thymoma. With this, we stress that awareness of false-positive uptake patterns is crucial for accurate diagnosis of recurrent prostate cancer.
Brain 18F-FDG PET in Cowden Syndrome
Authors: Grangeret Justine , Frismand Solene , Muller Marie , Renaud Mathilde , Verger Antoine 
Published: January 2022

Abstract
Cowden disease is associated with neurodevelopmental abnormalities such as macrocephaly, autism spectrum disorder, and developmental delay. Our understanding of neuroimaging anomalies in patients with PTEN mutations is limited to anatomical MRI abnormalities including white matter abnormalities, meningiomas, arteriovenous malformations, and cortical dysplasia. Our current communication extends the neurological Cowden syndrome phenotype by using brain 18F-FDG PET/CT imaging as a useful complementary approach to MRI to explore movement disorders and neuropsychiatric syndromes in a patient with Cowden disease. Brain 18F-FDG PET/CT showed diffuse hypometabolism of the prefrontal mesial and dorsolateral areas including supplementary motor areas, the pons extended to the cerebellum.
Utility of the Repeat and Point Test for Subtyping Patients With Primary Progressive Aphasia
Authors: Seckin Mustafa , Ricard Ingrid , Raiser Theresa , Heitkamp Nari , Ebert Anne , Prix Catharina , Levin Johannes , Diehl-Schmid Janine , Riedl Lina , Roßmeier Carola , Hoen Nora , Schroeter Matthias L. , Marschhauser Anke , Obrig Hellmuth , Benke Thomas , Kornhuber Johannes , Fliessbach Klaus , Schneider Anja , Wiltfang Jens , Jahn Holger , Fassbender Klaus , Prudlo Johannes , Lauer Martin , Duning Thomas , Wilke Carlo , Synofzik Matthis , Anderl-Straub Sarah , Semler Elisa , Lombardi Jolina , Landwehrmeyer Bernard , Ludolph Albert , Otto Markus ,   German FTLD consortium, Danek Adrian 
Published: January 2022

Background:
Primary progressive aphasia (PPA) may present with three distinct clinical sybtypes: semantic variant PPA (svPPA), nonfluent/agrammatic variant PPA (nfvPPA), and logopenic variant PPA (lvPPA).

Objective:
The aim was to examine the utility of the German version of the Repeat and Point (R&P) Test for subtyping patients with PPA.

Method:
During the R&P Test, the examiner reads out aloud a noun and the participants are asked to repeat the word and subsequently point to the corresponding picture. Data from 204 patients (68 svPPA, 85 nfvPPA, and 51 lvPPA) and 33 healthy controls were analyzed.

Results:
Controls completed both tasks with >90% accuracy. Patients with svPPA had high scores in repetition (mean=9.2±1.32) but low scores in pointing (mean=6±2.52). In contrast, patients with nfvPPA and lvPPA performed comparably in both tasks with lower scores in repetition (mean=7.4±2.7 for nfvPPA and 8.2±2.34 for lvPPA) but higher scores in pointing (mean=8.9±1.41 for nfvPPA and 8.6±1.62 for lvPPA). The R&P Test had high accuracy discriminating svPPA from nfvPPA (83% accuracy) and lvPPA (79% accuracy). However, there was low accuracy discriminating nfvPPA from lvPPA (<60%).

Conclusion:
The R&P Test helps to differentiate svPPA from 2 nonsemantic variants (nfvPPA and lvPPA). However, additional tests are required for the differentiation of nfvPPA and lvPPA.
Granulocyte-macrophage colony-stimulating factor (GM-CSF) antibodies treatment for COVID-19 patients: a meta-analysis
Authors: Guan Jin-Tao , Wang Wei-Jie , Xi Anran , Jin Du , Mou Xiao-Yue , Xu Zheng-Hao 
Published: January 2022

AbstractObjectiveWe performed a meta-analysis in order to determine safety of granulocyte-macrophage colony-stimulating factor (GM-CSF) antibodies on COVID-19.MethodsWe searched from the Cochrane Library, PubMed, Embase, biorxiv and medrxiv databases beginning in the COVID-19 outbreak on December 1, 2019 until August 29, 2021. The primary outcomes included death, the incidence of invasive mechanical ventilation (IMV), ventilation requirement, and secondary infection.Results6 eligible literature involving 1501 COVID-19 patients were recruited, and they were divided into experimental group (n = 736) and control group (n = 765). Using a random-effect model, we found that the GM-CSF antibodies treatment was associated with a 3.8-26.9% decline of the risk of mortality[odd’s ratio (OR) = 0.06, 95% confidence interval (CI): -0.11, -0.01, p =0.02], a 5.3-28.7% reduction of incidence of IMV [OR = 0.51, 95% CI: 0.28, 0.95, p =0.03], and a 23.3-50.0% enhancement of ventilation improvement [OR = 11.70, 95% CI: 1.99, 68.68, p=0.006]. There were no statistically significant differences in the association between two groups in second infection.ConclusionSevere COVID-19 patients may benefit from GM-CSF antibodies.
A Novel Scoring System for Early Assessment of the Risk of the COVID-19-associated Mortality in Hospitalized Patients: COVID-19 BURDEN
Authors: Amirzadehfard Fatemeh , Imanieh Mohammad Hossein , Zoghi Sina , Sehatpour Faezeh , Jafari Peyman , Hassanipour Hamidreza , Feili Maryam , Mollaie Maryam , Bostanian Pardis , Mehrabi Samrad , Dashtianeh Reyhaneh , Feili Afrooz 
Published: January 2022

AbstractBackgroundCorona Virus Disease 2019 (COVID-19) presentation resembles common flu or can be more severe; it can result in hospitalization with significant morbidity and/or mortality. We made an attempt to develop a predictive model and a scoring system to improve the diagnostic efficiency for COVID-19 mortality via analysis of clinical features and laboratory data on admission.MethodsWe retrospectively enrolled 480 consecutive adult patients, aged 21-95, who were admitted to Faghihi Teaching Hospital. Clinical and laboratory features were extracted from the medical records and analyzed using multiple logistic regression analysis.ResultsA novel mortality risk score (COVID-19 BURDEN) was calculated, incorporating risk factors from this cohort. CRP (> 73.1 mg/L), O2 saturation variation (greater than 90%, 84-90%, and less than 84%), increased PT (>16.2s), diastolic blood pressure (≤75 mmHg), BUN (>23 mg/dL), and raised LDH (>731 U/L) are the features comprising the scoring system. The patients are triaged to the groups of low- (score <4) and high-risk (score ≥ 4) groups. The area under the curve, sensitivity, and specificity for predicting non-response to medical therapy with scores of ≥ 4 were 0.831, 78.12%, and 70.95%, respectively.ConclusionUsing this scoring system in COVID-19 patients, the severity of the disease will be determined in the early stages of the disease, which will help to reduce hospital care costs and improve its quality and outcome.
The effects of opportunity motivation and environmental contingencies on market growth strategies of African early-stage entrepreneurs
Authors: Qiu Tianjiao 
Published: January 2022

PurposeThe purpose of this paper is to examine how early-stage entrepreneurs' opportunity motivation impacts their choice of market growth strategies as well as the contingent roles of institutional environments and product market conditions in Africa.Design/methodology/approachThe study employs hierarchical linear modeling to test multilevel models with nested data empirically.FindingsThe findings show that African early-stage entrepreneurs who are opportunity-driven and from countries with strong institutional environments have a higher tendency to adopt market exploration strategies. African early-stage entrepreneurs from countries with strong product market conditions have a higher tendency to adopt market penetration strategies. Further interaction tests show that both contingency conditions, namely institutional environments and product market conditions, moderate the effects of opportunity motivation on market growth strategies of African early-stage entrepreneurs.Practical implicationsThe study shows that policymakers in Africa need to develop flexible, supportive market-related policies based on entrepreneurs' growth paths, institutional environments and product market conditions.Originality/valueThe study is the first to explore multilevel influences on early-stage entrepreneurs' market growth strategies in Africa. It sheds new insights on the entrepreneurial marketing process of early-stage entrepreneurs in Africa.
Agri-food entrepreneurship. Harvesting, growing and reseeding the orchard through a bibliometric study
Authors: Petrolo Damiano , Fakhar Manesh Mohammad , Pellegrini Massimiliano Matteo , Flamini Giulia 
Published: January 2022

PurposeScholarly literature on entrepreneurial activities in the agri-food sector has flourished over the years in several different ways. This study uses the metaphor of an orchard to describe how this stream of literature has evolved from its initial “seeds” to the rich and diversified “fruits” of current debate. It is now time to harvest and catalogue these “fruits”. This study aims to map out and systematise the current stock of knowledge on agri-food entrepreneurship, so as to identify gaps and thus “plant” new seeds for the future of the “orchard”.Design/methodology/approachTo identify thematic clusters, this study used a bibliometric analysis coupled with a systematic literature review performed over a dataset of 108 peer-reviewed articles.FindingsThe results revealed six thematic clusters related to agri-food entrepreneurship: ecosystems, formal and informal institutions; contextual entrepreneurial practices; community and stakeholders’ engagement; barriers and opportunities; entrepreneurial orientation; and sustainable entrepreneurship. After investigating each of them, this study created a framework to highlight future avenues through which the topic could be further developed.Originality/valueTo the best of the authors’ knowledge, this study is the first of its kind to systematise, analyse and critically interpret the literature concerned with agri-food entrepreneurship.
Tomato Jos: launching a tomato paste brand in Nigeria
Authors: Maritz Jaco , Peters Mark 
Published: January 2022

Learning outcomes
The teaching objectives of the case are as follows: to develop an understanding of the scope and complexity of strategy and marketing; to examine what is meant by purpose, direction, objectives and consider how these might be set and used; to help students think and act in a strategic way; to give faculty the opportunity to illustrate the strategist’s and marketer’s toolbox, namely, tools and frameworks, such as Porters 5 Forces – The attractiveness of the industry, Porter’s Generic Marketing Strategies, strengths, weaknesses, opportunities, threats analysis, the 4P’s – with a focus on product and distribution. The case is intended for use in MBA and Executive education courses in strategy, marketing and leadership. The case offers relevant experiences and instructive lessons in formulating and implementing business strategies. The case highlights the importance of contextual leadership intelligence and competence in enabling entrepreneurial business activities.

Case overview/synopsis
Tomato Jos (Nigeria) is a large tomato processing business in Kaduna, Nigeria. Nigeria is the second-largest producer of tomatoes in Africa, with Egypt as the largest. The country ranks 14th overall as a world producer. In Africa, and specifically Nigeria, there is a strong push to support small-scale farmers as a source of employment creation, as well as meeting the needs of food security. The CEO, Mira Mehata, is an ex-pat graduate from the USA with strong Agri sector experience. The business has received extensive support from the Kaduna Government as the business has secondary objectives to assist small-scale farmers in the region. Farmers need consistent off takers and reasonable set prices to see a return on their investment and Tomato Jos plays that role of being the middle-man. This results in less wasted produce – the bane of farmers globally. The price for fresh tomatoes is about three times that of processed tomatoes IE in paste or sauce – so that is an added challenge for farmers to see the value in processed tomatoes. The business currently has a 2% Market Share in Nigeria with a target of 10% over the next five years. The business so far has invested three billion Naira and plans a further five billion Naira over the next few years. The business is seen as a high-profile success story with a supportive eco-system with a push from both the Nigerian Government and some major private sector players example Dangote.

Complexity academic level
The case is intended for use in MBA and Executive education courses in Strategy, Marketing and Leadership.

Supplementary materials
Teaching notes are available for educators only.

Subject code
CCS 11: Strategy.