bluuebunny/crossref_metadata_2025_split huggingface dataset:
Theories on Tornado and Waterspout Formation in Ancient Greece and Rome
Authors: Antonescu Bogdan , Schultz David M. , Ricketts Hugo M. A. M. , Ene Dragoş 
Published: August 2019

Abstract
Tornadoes and waterspouts have long fascinated humankind through their presence in myths and popular beliefs and originally were believed to have supernatural causes. The first theories explaining weather phenomena as having natural causes were proposed by ancient Greek natural philosophers. Aristotle was one of the first natural philosophers to speculate about the formation of tornadoes and waterspouts in Meteorologica (circa 340 BCE). Aristotle believed that tornadoes and waterspouts were associated with the wind trapped inside the cloud and moving in a circular motion. When the wind escapes the cloud, its descending motion carries the cloud with it, leading to the formation of a typhon (i.e., tornado or waterspout). His theories were adopted and further nuanced by other Greek philosophers such as Theophrastus and Epicurus. Aristotle’s ideas also influenced Roman philosophers such as Lucretius, Seneca, and Pliny the Elder, who further developed his ideas and also added their own speculations (e.g., tornadoes do not need a parent cloud). Almost ignored, Meteorologica was translated into Latin in the twelfth century, initially from an Arabic version, leading to much greater influence over the next centuries and into the Renaissance. In the seventeenth century, the first book-length studies on tornadoes and waterspouts were published in Italy and France, marking the beginning of theoretical and observational studies on these phenomena in Europe. Even if speculations about tornadoes and waterspouts proposed by Greek and Roman authors were cited after the nineteenth century only as historical pieces, core ideas of modern theories explaining these vortices can be traced back to this early literature.
Morphometric Differences in the Recurrent Laryngeal Nerve in Patients with Vocal Fold Paralysis
Authors: Chao Melissa R. , Howe Katherine A. , Pierce Jennifer L. , Stark Amanda C. , Smith Marshall E. , Christensen Michael B. 
Published: August 2019

Objectives: Injury to the recurrent laryngeal nerve (RLN), if severe enough, can result in vocal fold paralysis. Reinnervation surgery can improve patient outcomes, but previous studies have reported a negative correlation between time since onset of paralysis and surgical outcomes. The ability of the paralyzed nerve to serve as a conduit for donor nerve fibers may be a factor in the success of reinnervation; however, changes in RLN composition after paralysis have not been well studied. Therefore, we investigated the morphometric composition of explanted RLN sections from patients who had experienced vocal fold paralysis for varying length of times. Methods: Nine nerve sections from unilateral vocal fold paralysis (UVP) patients and seven control nerve sections were analyzed for morphometric parameters including fascicular area, fiber count, fiber density, fiber packing, mean g-ratio, and fiber diameter distribution. Nerves from UVP patients were also compared as a function of time since UVP onset. Results: In comparison to control nerves, paralyzed nerves were found to have significantly lower fiber densities and fiber packing, higher mean g-ratio values, and a shift in diameter distributions toward smaller diameter fibers. With respect to paralysis duration, no significant differences were observed except in fiber diameter distributions, where those with paralysis for >2 years had distributions that were significantly shifted toward smaller diameter fibers. Conclusions: The morphometric data presented here suggest that correlations between the time since onset of vocal fold paralysis and reinnervation outcomes may be due to fiber size changes in the paralyzed nerve over time.
Long-term Results of Arthroscopic Rotator Cuff Repair: Initial Tear Size Matters: A Prospective Study on Clinical and Radiological Results at a Minimum Follow-up of 10 Years
Authors: Randelli Pietro Simone , Menon Alessandra , Nocerino Elisabetta , Aliprandi Alberto , Feroldi Francesca Maria , Mazzoleni Manuel Giovanni , Boveri Sara , Ambrogi Federico , Cucchi Davide 
Published: August 2019

Background: Arthroscopic techniques are now considered the gold standard for treatment of most rotator cuff (RC) tears; however, no consensus exists on the maintenance of results over time, and long-term follow-up data have been reported for few cohorts of patients. Purpose: To present the long-term results associated with the arthroscopic treatment of RC tears and to evaluate associations between preoperative factors and RC integrity at final follow-up. Study Design: Cohort study; Level of evidence, 3. Methods: A total of 169 patients were contacted at least 10 years after arthroscopic RC surgery and were invited to a clinical evaluation. Information on preoperative conditions, tear size, subjective satisfaction, and functional scores was collected; isometric strength and range of motion were also measured; and each patient underwent an ultrasound examination to evaluate supraspinatus integrity and a shoulder radiograph to evaluate osteoarthritis. Results: A total of 149 patients (88.2% of the eligible patients) were available for a complete telephonic interview, and 102 patients were available for the final evaluation. Ultrasound revealed an intact supraspinatus in 54 patients (53.47%). By adding the 10 patients who underwent revision surgery to the nonintact group, this percentage would drop to 48.65%. Tear size was associated with supraspinatus integrity in univariate analysis (hazard ratio, 3.04; 95% CI, 1.63-5.69; P = .001) and multivariable analysis (hazard ratio, 2.18; 95% CI, 1.03-4.62; P = .04). However, no significant differences were encountered in the subjective and functional scores collected, with the exception of the Constant-Murley Score, which was significantly higher in patients with smaller tears at the index procedure. Strength testing also revealed significantly superior abduction and flexion strength in this group, and radiographs showed a significantly higher acromion-humeral distance and lower grades of osteoarthritis. Patients with an intact supraspinatus at final follow-up showed superior results in all functional scores, greater satisfaction, superior abduction and flexion strength, higher acromion-humeral distance, and lower grades of osteoarthritis. Conclusion: RC tear size at the time of surgery significantly affects supraspinatus integrity at a minimum follow-up of 10 years. However, a larger tear is not associated with an inferior subjective result, although it negatively influences abduction and flexion strength, range of motion, and osteoarthritis progression. Intraoperative efforts to obtain a durable RC repair are encouraged, since supraspinatus integrity at final follow-up influences clinical and functional outcomes, patient satisfaction, and osteoarthritis progression.
Hospice Palliative Care (HPC) and Medical Assistance in Dying (MAiD): Results From a Canada-Wide Survey
Authors: Antonacci Rebecca , Baxter Sharon , Henderson J. David , Mirza Raza M. , Klinger Christopher A. 
Published: August 2019

Background: With the legalization of medical assistance in dying (MAiD) in Canada, physicians and nurse practitioners now have another option within their scope of practice to consider alongside hospice palliative care (HPC) to support the patient and family regardless of their choice toward natural or medically assisted death. To elucidate insights and experiences with MAiD since its inception and to help adjust to this new end-of-life care environment, the membership of the Canadian Hospice Palliative Care Association (CHPCA) was surveyed. Methods: The CHPCA developed and distributed a 16-item survey to its membership in June 2017, one year following the legalization of MAiD. Data were arranged in Microsoft® Excel and open-ended responses were analyzed thematically using NVivo 12 software. Results: From across Canada, 452 responses were received (response rate: 15%). The majority of individuals worked as nurses (n = 161, 33%), administrators (n = 79, 16%), volunteers (n = 76, 16%) and physicians (n = 56, 11%). Almost 75% (n = 320) of all respondents indicated that they had experienced a patient in their program who had requested MAiD. Participants expressed dissatisfaction with the current psychological and professional support being provided by their health care organization and Ministry of Health - during and after the MAiD procedure. Conclusion: The new complexities of MAiD present unique challenges to those working in the health-care field. There needs to be an increased focus on educating/training providers as without proper support, health-care workers will be unable to perform to their full potential/scope of practice while also providing patients with holistic and accessible care.
Administering Neostigmine as a Subcutaneous Infusion: A Case Report of a Patient Dying With Myasthenia Gravis
Authors: Hindmarsh Jonathan , Woods Elizabeth , Lee Mark , Pickard Jonathan 
Published: August 2019

Background: Abrupt withdrawal of pharmacological therapies for myasthenia gravis can exacerbate muscle weakness and even trigger myasthenic crisis. Such medications should ideally be continued, but how this can be achieved in patients approaching the end of life, particularly when enteral administration is compromised, has not been defined. Case History: An 83-year-old man with a history of generalized myasthenia gravis and palliative metastatic anal adenocarcinoma was admitted to his local hospital with general decline, where he was considered by more than one physician to be actively dying from his cancer. In the days preceding admission, the patient had not taken his medications consistently, including the acetylcholinesterase inhibitor, pyridostigmine, for the management of his myasthenia gravis. Case Management and Outcome: Reintroduction of the patient’s usual myasthenia therapy improved his clinical condition to the point where he was no longer thought to be dying. When enteral administration of pyridostigmine was no longer possible, the patient was successfully converted to neostigmine, which was administered as a continuous subcutaneous infusion. Conclusion: Undertreated myasthenia gravis can lead to a rapid deterioration in a patient’s clinical condition, and such patients may be mistakenly diagnosed as dying. Undertreated myasthenia gravis should therefore be considered as a potentially reversible cause of acute deterioration, especially in patients with complex comorbidities. The use of neostigmine as a continuous subcutaneous infusion may have a role in the management of such patients, particularly when enteral administration of acetylcholinesterase inhibitors is no longer possible.
Stability of Insulin Detemir Injection in Different Primary Packaging Systems at Room Temperature
Authors: Shah Harsh S. , Rubin Rochelle F. , Lakhwani Gargi R. , DiGregorio Robert , Dave Rutesh H. 
Published: August 2019

Purpose: To assess the stability of insulin detemir at controlled room temperature (RT) at 25°C in different packaging systems over 7 days. Methods: The degradation characteristics of insulin detemir were determined based on the assay results in different packaging systems (pinhole glass vial, closed glass vial, glass syringe, and plastic syringe) at RT using a reverse-phase high-performance liquid chromatography (HPLC) assay method for insulin injection. Each packaging system was compared to insulin detemir stored in the original packaged closed glass vial at 2°C to 8°C. Results: Insulin detemir stored in a closed glass vial and a glass syringe showed minor degradation at the end of day 7 (98.96% ± 1.49% and 99.78% ± 0.10%, respectively). Insulin detemir stored in plastic syringe decreased to 94.90% ± 2.50% by day 3 and to 93.52% ± 0.29% by day 7. Storage in pin-hole glass vial showed an increase in the assay (152.13% ± 0.12%) by day 7. Conclusion: Stability studies in different packaging systems demonstrated that insulin detemir remained stable for at least 7 days in a closed glass vial or glass syringe, but for only 3 days in a plastic syringe at RT. This study will allow pharmacists in the hospital setting to deliver patient-specific insulin doses into an insulin syringe with confidence in the stability.
Colour contrast sensitivity in eyes at high risk of neovascular age-related macular degeneration
Authors: Calcagni Antonio , Howells Olivia , Eperjesi Frank , Bartlett Hannah , Denniston Alastair KO , Gibson Jonathan M , Hogg Christopher R , Matthews Timothy D 
Published: August 2019

Purpose: To generate the first published reference database of colour contrast sensitivity in eyes at high risk of neovascular age-related macular degeneration and to explore this important feature in quality of vision. Background: Quality of vision depends on many factors. Changes in chromatic contrast sensitivity remain largely unexplored in eyes at high risk of neovascular age-related macular degeneration; they may however not only be relevant for quality of life but also an early indicator of the onset of the disease, so it is important to have a means to evaluate any variation in colour contrast sensitivity, especially in view of the likely increase in neovascular age-related macular degeneration as the population ages. Methods: This prospective longitudinal study evaluated colour contrast sensitivity along the protan and tritan colour axes in 145 eyes at high risk of neovascular age-related macular degeneration. Results: Colour contrast sensitivity showed statistically significant correlations with age and visual acuity, but not gender nor laterality (i.e. whether the right or left eye was being tested). There was significant variability among individuals, especially for the tritan axis, with some subjects well within normal limits for age and others with very poor colour contrast sensitivity. Conclusion: This study has generated the first published colour contrast sensitivity reference database for eyes at high risk of neovascular age-related macular degeneration. It has also shown a high inter-individual variability of colour contrast sensitivity in eyes at high risk of neovascular age-related macular degeneration, but the significance of this is unclear. Further work is required to establish if eyes with high colour contrast sensitivity thresholds (i.e. poor colour vision) have a higher risk of developing neovascular age-related macular degeneration over time, and this is the subject of ongoing work.
Ocular non-teratoid medulloepithelioma with teratoid metastases in ipsilateral intraparotid lymph nodes
Authors: Sarangi Jayati , Kakkar Aanchal , Roy Diya , Thakur Rishikesh , Singh Chirom Amit , Sharma Mehar C 
Published: August 2019

Purpose: To describe a rare presentation of a case of intraocular non-teratoid medulloepithelioma with teratoid metastases in ipsilateral intraparotid lymph nodes. Case description: A 9-year-old male child with previous history of ciliary body non-teratoid medulloepithelioma presented with a swelling in the right pre-auricular region for 1 month. Magnetic resonance imaging and positron emission tomography–computed tomography showed a right intraparotid mass with enlarged ipsilateral cervical lymph nodes. A core biopsy was taken from the lesion, which on microscopy showed a tumor composed of small round cells arranged in cords, tubules lined by multilayered cells, and in cribriform pattern. These cells were embedded in a hypocellular, loose myxoid matrix. Based on the histopathological characteristics and previous history, a diagnosis of medulloepithelioma metastastic to ipsilateral parotid gland was made. The patient underwent right total conservative parotidectomy and bilateral neck dissection. Histopathological examination revealed metastatic medulloepithelioma in five out of eight intraparotid lymph nodes, with extranodal extension into the adjacent parotid parenchyma. Foci of hyaline cartilage were identified within the tumor, leading to a diagnosis of metastatic teratoid medulloepithelioma. Conclusion: Intraparotid lymph node metastases from intraocular medulloepithelioma is a rare possibility and we recommend that the parotid should be evaluated in cases of intraocular medulloepithelioma at initial presentation as well as during the follow-up period. Also, metastasis should be considered in all pediatric patients with solitary mass lesions showing unconventional histology for a primary parotid neoplasm.
Prevalence of Thymic Parathyroids in Primary Hyperparathyroidism During Radioguided Parathyroidectomy
Authors: Dream Sophie , Lindeman Brenessa , Chen Herbert 
Published: August 2019

Background: Radioguided surgery has been an effective tool for identifying hyperfunctioning parathyroid glands during routine parathyroidectomy for hyperparathyroidism. The purpose of this study was to examine the role of radioguided surgery for the identification of intrathymic parathyroid glands. Material and Methods: Between March 2001 and February 2018, 2291 patients underwent parathyroidectomy by 1 surgeon for primary hyperparathyroidism. Of these patients, 158 (7%) were identified to have an ectopic intrathymic parathyroid gland. All patients underwent radioguided parathyroidectomy. Ex vivo radionuclide counts were used to confirm parathyroid excision with specimen radioactivity of >20% of the background level. Results: The mean age was 56 ± 1 years with 74% of the patients being female. Preoperatively, 122 patients underwent sestamibi scan, which correctly identified the affected gland 61% of the time. Mean background radionuclide count was 208 ± 7, mean ex vivo radionuclide count was 127 ± 9, with ex vivo counts of removed glands >20% in all patients. All ectopic parathyroid glands were successfully identified using gamma probe. Ex vivo counts found to be significantly higher in patients with adenomas. Patients with parathyroid adenomas also were older in age and had higher preoperative calcium levels. While 10% of patients with primary hyperparathyroidism have hyperplasia, 42% of patients with thymic parathyroids had hyperplasia. Conclusions: Radioguided parathyroidectomy is useful in detecting ectopic parathyroid glands in the thymus. Patients with hyperplasia disproportionately have clinically significant thymic parathyroid glands.
An evaluation of Alberta pharmacists’ practices, views and confidence regarding prescription drug abuse and addiction within their practice setting
Authors: Necyk Candace , Cor Ken , Mazzuca Arianna , Meleshko Lauren 
Published: August 2019

Background: Pharmacists play an important role in managing patients with prescription drug abuse and addiction (PDAA). The objective of this study was to explore Alberta pharmacists’ practices, views and confidence in the management of patients at risk of or living with PDAA in their practice setting. Methods: A 26-question online questionnaire was distributed to 4261 pharmacists across Alberta, of whom 656 (15%) participated. The questionnaire consisted of 17 multiple-choice, 6 multipart and 3 free-response questions. Questionnaire responses were collected and analyzed in Qualtrics. Results: Sixty-six percent ( n = 408) of pharmacists indicated that PDAA was prevalent in their practice setting, with 55% ( n = 340) of respondents encountering more than 6 patients with suspected or known PDAA a month. Thirty-five percent ( n = 198) of pharmacists indicated they were moderately confident at identifying patients with potential PDAA. However, 41% ( n = 235) of the pharmacists indicated that they only discuss PDAA with identified patients less than half of the time. Pharmacists lacked confidence in their ability to discuss PDAA treatment options with their patients as well as collaborate with addiction treatment facilities. Lack of training or knowledge in PDAA (48%) and uncertainty of how to initiate discussion or effectively communicate with patients about PDAA (39%) were identified as barriers that significantly or very significantly hindered respondents from managing PDAA in their practice. Conclusions: Although many pharmacists are moderately confident in identifying patients with potential PDAA, several barriers hinder intervention. Providing pharmacists with additional training and resources may better equip them to manage PDAA within their practice settings. Can Pharm J (Ott) 2019;152:xx-xx.
Prostate volume index and prostatic chronic inflammation have an effect on tumor load at baseline random biopsies in patients with normal DRE and PSA values less than 10 ng/ml: results of 564 consecutive cases
Authors: Porcaro Antonio B. , Tafuri Alessandro , Sebben Marco , Shakir Aliasger , Novella Giovanni , Pirozzi Marco , Processali Tania , Rizzetto Riccardo , Amigoni Nelia , Tiso Leone , Cerrato Clara , Brunelli Matteo , Cerruto Maria Angela , Migliorini Filippo , Siracusano Salvatore , Artibani Walter 
Published: August 2019

Background: To assess the association of prostate volume index (PVI), defined as the ratio of the central transition zone volume (CTZV) to the peripheral zone volume (PZV), and prostatic chronic inflammation (PCI) as predictors of prostate cancer (PCA) load in patients presenting with normal digital rectal exam (DRE) and prostate-specific antigen (PSA) ⩽ 10 ng/ml at baseline random biopsies. Methods: Parameters evaluated included age, PSA, total prostate volume (TPV), PSA density (PSAD), PVI and PCI. All patients underwent 14 core transperineal randomized biopsies. We considered small and high PCA load patients with no more than three (limited tumor load) and greater than three (extensive tumor load) positive biopsy cores, respectively. The association of factors with the risk of PCA was evaluated by logistic regression analysis, utilizing different multivariate models. Results: 564 Caucasian patients were included. PCA and PCI were detected in 242 (42.9%) and 129 (22.9%) cases, respectively. On multivariate analysis, PVI and PCI were independent predictors of the risk of detecting limited or extensive tumor load. The risk of detecting extensive tumor load at baseline biopsies was increased by PSAD above the median and third quartile as well as PVI ⩽ 1 [odds ratio (OR)=1.971] but decreased by PCI (OR=0.185; 95% CI: 0.088–0.388). Conclusions: Higher PVI and the presence of PCI predicted decreased PCA risk in patients presenting with normal DRE, and a PSA ⩽ 10 ng/ml at baseline random biopsy. In this subset of patients, a PVI ⩽ or >1 is able to differentiate patients with PCA or PCI.
Possibility of Local Allergic Rhinitis in Japan
Authors: Ishida Mariko , Matsune Shoji , Wakayama Nozomu , Ohashi Ryuji , Okubo Kimihiro 
Published: August 2019

Background The concept of local allergic rhinitis (LAR) has been advocated recently. Allergic rhinitis in Japan is characterized by house dust mites (HDMs) and Japanese cedar pollen (JCP). To investigate LAR in Japan, total IgE and antigen-specific IgE (sIgE) were measured in inferior turbinate mucosa and their relationships with skin test (ST) and nasal allergen provocation test (NAPT) and as well as serum IgE levels were examined. Methods Subjects were 50 rhinosinusitis patients for surgery. ST was performed and serum total IgE and sIgE levels were measured preoperatively. Patients with class-0 serum anti-HDM or anti-JCP sIgE levels were subjected to NAPT with HDM or JCP, respectively, or both. In all patients, inferior turbinate mucosa was weighed and mashed, and total IgE and sIgE levels were then measured as local mucosal date per gram and per milligram. Because there is no clinical consensus how to evaluate nasal sIgE yet, both positive NAPT and detectable sIgE in obtained nasal mucosa were adopted as the diagnostic criteria of LAR in order to strictly elucidate the possibility of presence of LAR in Japan. Results JCP LAR was definitely diagnosed in 2 of 14 patients (14.3%) and HDM LAR in 5 of 21 (23.8%) in cases with rhinosinusitis symptoms in the absence of positive ST nor serum sIgE. Conclusion The present results positively support LAR by HDM or JCP being present in Japan.