bluuebunny/crossref_metadata_2025_split huggingface dataset:
18F-FDG PET/CT Assessment of Malignant Granular Cell Tumor of the Soft Tissue
Authors: Lara Martínez María Fernanda , Díaz Silván Alicia , Vilahomat Hernández Olga , Cabello García Dolores , Allende Riera Ana Julia 
Published: December 2020

Abstract
Malignant granular cell tumor variant is rare and even more if lower extremities are involved. We present a rare case with images of 18F-FDG PET/CT showing 2 hypermetabolic lesions on the right tight with an elevated SUVmax value of 7.50 and 2 adenopathies with an SUVmax almost as high as the lesions. Histopathologic sample after complete excision confirmed malignant granular cell tumor with lymph node metastases.
Incidental 18F-Fluciclovine Uptake in a Desmoid Tumor Detected in a Patient Undergoing PET/CT Imaging for Prostate Cancer
Authors: Baiomy Ali , Jensen Corey T. , Ward John F. , Chasen Beth A. , Ravizzini Gregory C. 
Published: December 2020

Abstract
A 74-year-old man with biochemical recurrent prostate cancer underwent 18F-fluciclovine PET/CT for restaging to determine subsequent treatment strategy. 18F-fluciclovine PET/CT imaging demonstrated incidental focal heterogeneous increased 18F-fluciclovine uptake corresponding to a soft tissue nodule within the musculature of the left anterior abdominal wall. Subsequent ultrasound-guided biopsy of the lesion revealed histopathology compatible with a desmoid tumor. Consequently, the patient underwent surgical resection with wide local excision of the lesion.
Pancreatitis, Panniculitis, and Polyarthritis Syndrome Detected on 99mTc-MDP Bone Scan
Authors: He Limeng , Deng Yan , Deng Ying , Rao Zijuan , Zhang Wei 
Published: December 2020

Abstract
Pancreatitis, panniculitis, and polyarthritis syndrome is a rare disease. A 49-year-old man recently complained of bilateral ankle and epigastric pain. An ankle x-ray showed subcutaneous soft tissue swelling. Subsequent 99mTc-MDP bone scan showed foci of abnormal activity around joints in all extremities, especially in the knees and ankles. In addition, multiple nodular calcifications in the head of the pancreas were found in the abdominal CT scan. The patient also had increased blood amylase and lipase. The symptoms were resolved after the treatment of his pancreatitis.
Pulmonary Vein Stenosis as a Pitfall of Ventilation/Perfusion SPECT/CT for Pulmonary Embolism
Authors: Kind Felix , Goetz Christian , Meyer Philipp Tobias , Föll Daniela , Russe Maximilian Frederik , Ruf Juri 
Published: December 2020

Abstract
A 58-year-old man with progressive dyspnea and recurrent extensive left-sided pleural effusion underwent pulmonary ventilation/perfusion SPECT/CT, which showed a pronounced mismatched perfusion deficit of the entire, normally ventilated left lung. As unilateral perfusion deficits of an entire lobe are generally not due to pulmonary embolism, further CT angiography and cardiac MRI were conducted. These examinations revealed high-grade left pulmonary vein stenosis (PVS) caused by pulmonary vein isolation performed for atrial fibrillation 3 and 4 years earlier. Thus, in addition to, for example, neoplastic processes or pulmonary congenital vascular abnormalities, PVS must be considered as a differential diagnosis and possible pitfall in ventilation/perfusion SPECT/CT in dyspneic patients with prior pulmonary vein isolation.
18F-FDG and 68Ga-DOTATOC PET/CT Findings in a Case of Abdominal Leiomyosarcoma
Authors: Lorusso Margherita , Angelico Giuseppe , Quirino Michela , Scolozzi Valentina , Calcagni Maria Lucia 
Published: December 2020

Abstract
We report the case of a 58-year-old man with mesenteric nodule at CT performed for abdominal pain. In the suspicion of neoplastic disease, he underwent 18F-FDG PET/CT that did not show abnormal uptake. The nodule was monitored alternating CT and MRI. Two years after the first detection, MRI revealed an increase in size, and 18F-FDG PET/CT was repeated for metabolic evaluation, showing increased metabolic activity. In suspicion of neuroendocrine tumor, for anatomical site, slow growth, and clinical symptoms, 68Ga-DOTATOC PET/CT was performed showing focal uptake, indicating high expression of somatostatin receptors. The final pathology report was consistent with high-grade leiomyosarcoma.
Unexpected Vertebral Bodies Trapping of 99mTc–Macroaggregated Albumin During Lung Perfusion Scintigraphy in a Patient With Collateral Paravertebral Venous System
Authors: Dietz Matthieu , Si-Mohamed Salim , Deville Agathe , Tordo Jeremie , Moreau-Triby Caroline 
Published: December 2020

Abstract
A 35-year-old woman was referred to our nuclear medicine center for a ventilation and perfusion (VQ) pulmonary scintigraphy to detect pulmonary embolism. She was treated with low-molecular-weight heparin following a proximal venous thrombosis of the right upper limb and had a previous history of an infiltrating ductal carcinoma of the right breast. Surprisingly, the VQ scintigraphy showed uptake of 99mTc-MAA in several superior vertebrae. A contrast-enhanced CT scan revealed a dilated collateral paravertebral venous system due to the deep vein thrombosis extended from superior vena cava to brachiocephalic trunk. 99mTc-MAA was trapped through the dilated vertebral venous system.
A Comprehensive Evaluation of Risk Factors for Pneumocystis jirovecii Pneumonia in Adult Solid Organ Transplant Recipients: A Systematic Review and Meta-analysis
Authors: Permpalung Nitipong , Kittipibul Veraprapas , Mekraksakit Poemlarp , Rattanawong Pattara , Nematollahi Saman , Zhang Sean X. , Steinke Seema Mehta 
Published: December 2020

Background.
There is no consensus guidance on when to reinitiate Pneumocystis jirovecii pneumonia (PJP) prophylaxis in solid organ transplant (SOT) recipients at increased risk. The 2019 American Society of Transplantation Infectious Diseases Community of Practice (AST IDCOP) guidelines suggested to continue or reinstitute PJP prophylaxis in those receiving intensified immunosuppression for graft rejection, cytomegalovirus (CMV) infection, higher dose of corticosteroids, or prolonged neutropenia.

Methods.
A literature search was conducted evaluating all literature from existence through April 22, 2020, using MEDLINE and EMBASE. (The International Prospective Register of Systematic Reviews registration number: CRD42019134204).

Results.
A total of 30 studies with 413 276 SOT recipients were included. The following factors were associated with PJP development: acute rejection (pooled odds ratio [pOR], 2.35; 95% confidence interval [CI], 1.69-3.26); study heterogeneity index [I2] = 23.4%), CMV-related illnesses (pOR, 3.14; 95% CI, 2.30-4.29; I2 = 48%), absolute lymphocyte count <500 cells/mm3 (pOR, 6.29; 95% CI, 3.56-11.13; I2 = 0%), BK polyomavirus-related diseases (pOR, 2.59; 95% CI, 1.22-5.49; I2 = 0%), HLA mismatch ≥3 (pOR, 1.83; 95% CI, 1.06-3.17; I2 = 0%), rituximab use (pOR, 3.03; 95% CI, 1.82-5.04; I2 = 0%), and polyclonal antibodies use for rejection (pOR, 3.92; 95% CI, 1.87-8.19; I2 = 0%). On the other hand, sex, CMV mismatch, interleukin-2 inhibitors, corticosteroids for rejection, and plasmapheresis were not associated with developing PJP.

Conclusions.
PJP prophylaxis should be considered in SOT recipients with lymphopenia, BK polyomavirus-related infections, and rituximab exposure in addition to the previously mentioned risk factors in the American Society of Transplantation Infectious Diseases Community of Practice guidelines.
Impact of Disturbed Rest-activity Rhythms on Activities of Daily Living in Moderate and Severe Dementia Patients
Authors: Ishimaru Daiki , Tanaka Hiroyuki , Nagata Yuma , Ogawa Yasuhiro , Fukuhara Keita , Takabatake Shinichi , Nishikawa Takashi 
Published: December 2020

Purpose:
People with dementia exhibit disturbed rest-activity rhythms and extended sleep duration issues throughout their disease. Little is known about the effects of these issues on clinical problems for those with moderate and severe dementia. This cross-sectional study aimed to examine the associations of disturbed rest-activity rhythms and extended sleep duration with activities of daily living (ADL).

Methods:
Sleep parameters were measured using an actigraphy device. Cognitive function was assessed using the Mini-Mental State Examination and Cognitive Test for Severe Dementia, the Hyogo Activities of Daily Living Scale was used to assess ADL, and behavioral and psychological symptoms of dementia were assessed using the Neuropsychiatric Inventory-Nursing Home scale. Associations among rest-activity rhythms, sleep duration, and other clinical variables were analyzed with multiple linear regression. Clinical variables were compared between 2 groups categorized by onset timing of rest peak.

Patients:
Sixty-four participants with moderate and severe dementia were assessed.

Results:
In the correlation analysis, unstable daily rest-activity rhythm was associated with lower ADL. In the multiple linear regression analysis, low intradaily variability, and long daytime sleep duration were associated with low ADL. Aberrant rest peak timing showed lower ADL compared with nonaberrant timing.

Conclusions:
Abnormal rest-activity rhythm and sleep duration in persons with moderate and severe dementia may affect ADL.
Functional Decline and Body Composition Change in Older Adults With Alzheimer Disease
Authors: Murata Shunsuke , Ono Rei , Sugimoto Taiki , Toba Kenji , Sakurai Takashi 
Published: December 2020

Background:
There is a dearth of longitudinal data on body composition, function, and physical performance in persons with Alzheimer’s disease (AD).

Objectives:
The aim was to describe the trajectories of function, body composition, and physical performance in older adults with AD.

Methods:
In this retrospective cohort study, data were collected from older adults (n=1402) diagnosed with AD (mean age: 78.1 y old, women: 69.3%). Cognitive function was assessed using the mini-mental state examination. Proxy-reported instrumental and basic activities of daily living were assessed using the Lawton and Barthel indexes. Body composition was assessed using bioelectrical impedance analysis. Physical performance was assessed using the timed up and go test and grip strength.

Results:
Median (interquartile range) of follow-up time was 2.2 (1.2 to 3.6) years. Participants’ mini-mental state examination score, Barthel index, and Lawton index declined over time. Skeletal muscle mass index and physical performance (timed up and go test and grip strength) decreased, while fat mass index increased with time. No significant changes or slight decline in weight and body mass index was observed.

Conclusions:
Muscle mass and physical performance are likely to decline in older adults with AD. Clinicians should assess muscle mass and physical performance trajectories regularly in these patients and intervene appropriately.
Dendrobium nobile Lindl. polysaccharides reduce cerebral ischemia/reperfusion injury in mice by increasing myeloid cell leukemia 1 via the downregulation of miR-134
Authors: Liu Jing , Han Yu , Zhu Tao , Yang Qing , Wang Heming , Zhang Hao 
Published: December 2020

Objective:
The traditional Chinese medicine, Dendrobium nobile Lindl. polysaccharides (DNLP), reportedly has neuroprotective effects. However, its effects following ischemic stroke remain unclear. This study aimed to explore the role and mechanism of DNLP in experimental models of inflammation and apoptosis.

Methods:
Inflammation and apoptosis were induced by in vivo ischemia/reperfusion and by in vitro oxygen glucose deprivation/reperfusion (OGD/R). In the in vivo model, immediately after the induction of cerebral ischemia, 50, 100, and 200 mg/kg DNLP were injected intraperitoneally. We subsequently detected indicators of neuronal damage.

Results:
Treatment with Dendrobium nobile Lindl. polysaccharide significantly reduced cerebral ischemic injury. After in vivo and in vitro middle cerebral artery occlusion/reperfusion or OGD/R-induced hypoxia injury, miR-134 expression in neurons was significantly increased. Altering the expression of miR-134 induced changes in myeloid cell leukemia 1 (MCL-1), one of its target proteins. In addition, DNLP significantly downregulated the in vivo and in vitro expression of miR-134 after ischemic injury, and influenced inflammation and apoptotic proteins by altering the level of MCL-1 protein. DNLP also had a protective effect on neurons damaged by OGD/R, which could improve cell survival rates and inhibit lactate dehydrogenase release as well as apoptosis.

Conclusions:
DNLP may protect the brain and neurons from hypoxic damage in mice with ischemic stroke by activating MCL-1 and downregulating miR-134, providing a new therapeutic target for ischemic stroke.
Southern skies: Australian atmospheric research and global climate change
Authors: Morgan Ruth A. 
Published: December 2020

PurposeThe purpose of this paper is to examine the role of Australian climate scientists in advancing the state of knowledge about the causes and mechanisms of climatic change and variability in the Southern Hemisphere during the 1970 and 1980s.Design/methodology/approachThe paper uses the methods and insights of environmental history and the history of science to analyse archival and published data pertaining to research on atmospheric pollution, the Southern Oscillation and the regional impacts of climate change.FindingsAustralia's geopolitical position, political interests and environmental sensitivities encouraged Australian scientists and policymakers to take a leading role in the Southern Hemisphere in the study of global environmental change.Originality/valueThis article builds on critiques of the ways in which planetary and global knowledge and governance disguise the local and situated scientific and material processes that construct, sustain and configure them.
Stabilising collaborative consumer networks: how technological mediation shapes relational work
Authors: Makkar Marian , Yap Sheau-Fen , Belk Russell 
Published: December 2020

Purpose
This paper aims to examine the role of technology in shaping the interplay between intimate and economic relations in collaborative consumer networks (CCNs).

Design/methodology/approach
This research is based on a three-year participatory netnographic and ethnographic field study of hosts, guests and community members within the Airbnb home-sharing network in New Zealand. The data consist of interviews, online and offline participant observations and brief discussions onsite (large-scale Airbnb events, host meetups and during Airbnb stays).

Findings
The findings reveal how technologies shape the relational work of home-sharing between intimate and economic institutions through grooming, bundling, brokerage, buffering and social edgework. This paper proposes a framework of triadic relational work enacted by network actors, involving complex exchange structures.

Research limitations/implications
This study focusses on a single context – a market-mediated home-sharing platform. The findings may not apply to other contexts of economic and social exchanges.

Practical implications
The study reveals that the construction of specific relational packages by Airbnb hosts using their digital technologies pave a path for home-sharing to skirt the norms of the home as a place of intimacy and the market as a place for economics. This allows these two spheres to flourish with little controversy.

Originality/value
By augmenting Zelizer’s relational work, this study produces theoretical insights into the agentic role of technology in creating and stabilising a CCN.
The impacts of acquisition modes on achieving customer behavioral loyalty: an empirical analysis of the credit card industry from China
Authors: Ming Yaxin , Chen Jing (Elaine) , Li Chenxi 
Published: December 2020

PurposeThis study aims to investigate the effect of acquisition modes on customer behavioral loyalty to enrich our knowledge of the effectiveness of acquisition modes and how to better target customers in the service industry.Design/methodology/approachUsing a data set from a large commercial bank in China, this study conducts a series of empirical analyses to examine the impacts of two types of acquisition modes (i.e. the gift acquisition mode and customer referral) on customer behavioral loyalty.FindingsGift acquisition has a negative effect on customer behavioral loyalty, as measured by the dropout probability, consumption amount and consumption frequency. Furthermore, this negative relationship could be weakened if the customer is referred by an existing customer.Originality/valueAlthough prior studies have investigated the effectiveness of some acquisition modes in terms of customer loyalty, customer acquisition through the provision of gifts, which is widely implemented in marketing practice, has not been well investigated. This study addresses this research gap and identifies the joint influence of acquisition modes on customer behavioral loyalty, further enriching our knowledge of the effectiveness of different acquisition modes.
Addressing the high burden of noncommunicable diseases in Nigeria: a commentary
Authors: Adesina Miracle Ayomikun , Oladele Ruth Ifeoluwa , Olufadewa Isaac Iyinoluwa , Onothoja Ogheneruona Favour , Oladipo Damilola Remilekun , Iyiola Opeyemi Paul , Ekott Marvelene Bassey , Nwachukwu Pamela Chinenye , Baru Ararso , Akinloye Seyi John 
Published: December 2020

PurposeThe purpose of this study describes how individuals; healthcare providers and the government can reduce the burden of noncommunicable diseases (NCDs) in Nigeria.Design/methodology/approachThis commentary paper combines extensive literature searches and experience from public health physicians.FindingsNoncommunicable diseases are chronic diseases. They result from a combination of genetic, physiological, environmental and behavioral factors. NCDs are divided into four classes: cardiovascular diseases, cancers, chronic respiratory diseases and diabetes.Practical implicationsNoncommunicable diseases are responsible for about a quarter of total deaths in Nigeria. These deaths are unnecessary as most NCDs can be prevented if the risk factors are dealt with. Dealing with these risk factors involves everyone (Individuals, government, interdisciplinary and multidisciplinary researchers, policymakers, government, etc.).Originality/valueMajor risk factors for NCDs are tobacco use, harmful use of alcohol, unhealthy diet and physical inactivity. The solution to NCDs, therefore, lies in dealing with these factors, which, fortunately, are modifiable since they have to do with lifestyle practices. There is evidence to support the claim that a reduction of the risks of NCDs can be achieved by engaging in healthy lifestyle practices.
“We'll go back to a system you really do not like!” Organizational norms and structural violence in a British foodbank
Authors: Bruck Amanda Elizabeth , Garthwaite Kayleigh 
Published: December 2020

PurposeWe explore how neoliberal logic has led to an erosion of social-welfare programs and pervades organizational structures and functions of a third-sector organization. Based upon fieldwork in a foodbank in the North-West of England, we discuss the impact of economic cuts upon organizational norms of the foodbank, and the intersection with the provision of charity support and personal relationships between the staff, volunteers and visitors.Design/methodology/approachThis article analyses pervasiveness of neoliberalism on a foodbank and the impact this has on organizational norms and relationships found within the organization. It integrates themes of structural violence, neoliberal discourse in the charity sector, notions of (un)deservingness and appropriate of time.FindingsOur research finds how a hostile environment transpires in a third-sector organization under increased economic and bureaucratic pressures and from this, organizational rules emerge that ignore the lived experiences of the people it serves. Herein, visitors must learn the organization's norms and garner relationships to be able to navigate the organization to successfully access essential resources.Originality/valueThe findings in this article will be of interest to academics researching poverty and organizational norms, professionals in the charity-sector and policy makers. Rules originating from economic and bureaucratic pressures can establish barriers to accessing essential material resources. It informs the pressures felt in balancing access to support services with personal timetables, and the need to include visitors' voices in establishing norms.
Investors' preferences and the factors affecting investment in the Indian stock market: an industry view
Authors: Chhimwal Bhaskar , Bapat Varadraj , Gaurav Sarthak 
Published: December 2020

PurposeThe authors examine the industrywise investment preferences of foreign portfolio investors (FPIs), domestic institutional investors (DIIs) and retail investors in the Indian context. They also investigate the factors influencing their preferences.Design/methodology/approachUsing the quarterly shareholdings and returns data of the Indian market from March 31, 2009 to March 31, 2018, the authors employ analysis of variance to study investors' preferences and a random effect panel data model to examine the factors that influence these preferences.FindingsFPIs hold proportionally more stocks in service-oriented industries and large-cap firms, DIIs hold proportionally large numbers of shares in paper industries and retail investors hold proportionally more shares in chemicals and textiles. FPIs prefer stocks with a high export-to-sales ratio and firms registered on a foreign stock market. Domestic investors, especially retail investors, prefer small-cap stocks and firms whose operations require local knowledge. In addition, industry heterogeneity determines investment decisions. Firm-specific and macroeconomic factors that influence investment decisions differ across industries. Finally, government policies and reforms also play a key role in attracting investors.Practical implicationsPolicymakers can identify the key variables that influence investment, which can help direct and regulate investment in India and similar emerging markets.Originality/valueThis study fills a research gap by addressing how industry-level heterogeneity affects investors' preferences in terms of the industrywise preferences of different types of investors and the factors that influence their preferences.
Variance decomposition of firm performance: past, present and future
Authors: Esho Ebes , Verhoef Grietjie 
Published: December 2020

PurposeThe purpose of this paper is to present a review of variance decomposition studies of firm performance and the theoretical foundations that served as the antecedents and promptings for this stream of research. Known collectively as “variance decomposition literature,” these studies use variance decomposition techniques to partition firm performance into various classes of effects in a bid to unveil the relative importance of factors responsible for firm performance variance.Design/methodology/approachA review of papers published in SCOPUS and institute for scientific information indexed journals was conducted.FindingsThe study found that firm, industry, corporate, business group and country effects are the major effects included in most extant studies. However, of all effects, firm effects remain the dominant and most important impact on firm performance. The effects that affect firm performance are also interdependent.Practical implicationsConsequently, the decisions of managers in firms are still the most important element in helping the firm to navigate industry and contextual factors, especially during periods of recession.Originality/valueFrom the review, research gaps were identified and suggestions for future research provided. There is still much to learn from variance decomposition literature in an age of new business models, unprecedented start-up firms and from developing and emerging market countries.