bluuebunny/crossref_metadata_2025_split huggingface dataset:
Clinical Impact of Blood Glucose Monitoring Accuracy: An In-Silico Study
Authors: Campos-Náñez Enrique , Fortwaengler Kurt , Breton Marc D. 
Published: June 2017

Background: Patients with diabetes rely on blood glucose (BG) monitoring devices to manage their condition. As some self-monitoring devices are becoming more and more accurate, it becomes critical to understand the relationship between system accuracy and clinical outcomes, and the potential benefits of analytical accuracy. Methods: We conducted a 30-day in-silico study in type 1 diabetes mellitus (T1DM) patients using continuous subcutaneous insulin infusion (CSII) therapy and a variety of BG meters, using the FDA-approved University of Virginia (UVA)/Padova Type 1 Simulator. We used simulated meter models derived from the published characteristics of 43 commercial meters. By controlling random events in each parallel run, we isolated the differences in clinical performance that are directly associated with the meter characteristics. Results: A meter’s systematic bias has a significant and inverse effect on HbA1c ( P < .01), while also affecting the number of severe hypoglycemia events. On the other hand, error, defined as the fraction of measurements beyond 5% of the true value, is a predictor of severe hypoglycemia events ( P < .01), but in the absence of bias has a nonsignificant effect on average glycemia (HbA1c). Both bias and error have significant effects on total daily insulin (TDI) and the number of necessary glucose measurements per day ( P < .01). Furthermore, these relationships can be accurately modeled using linear regression on meter bias and error. Conclusions: Two components of meter accuracy, bias and error, clearly affect clinical outcomes. While error has little effect on HbA1c, it tends to increase episodes of severe hypoglycemia. Meter bias has significant effects on all considered metrics: a positive systemic bias will reduce HbA1c, but increase the number of severe hypoglycemia attacks, TDI use, and number of fingersticks per day.
The negative predictive value of a negative repeat urinalysis in patients presenting with haematuria: A review of 1138 patients
Authors: Starmer Benjamin Zak , Singh Amal , Bromage Stephen 
Published: June 2017

Objective: Haematuria may be transient for a number of benign conditions, particularly a urinary-tract infection (UTI). We set out to determine if a negative repeat urinalysis at the time of urological assessment for patients with haematuria could predict negative investigations and whether investigations could be tailored by this test. Methods: This was a retrospective analysis of records for all patients attending a haematuria clinic between 16 September 2013 and 12 September 2014. This included patients with visible and non-visible (microscopic) haematuria. Results: There were 1138 patients, 599 with visible haematuria (VH) and 460 with non-visible haematuria (NVH). Seventy-two patients were excluded. A total of 546 patients had a positive repeat urinalysis for blood; 438 patients had a negative repeat urinalysis when tested at the haematuria clinic, 298/599 for VH and 140/460 NVH. For those who had negative repeat urinalysis, urothelial cancer was found in 15/298 VH and 1/140 NVH. The one patient with negative repeat urinalysis and NVH was found to have a grade 2 (high grade) bladder tumour. The negative predictive value for a negative repeat urinalysis in transient haematuria was 0.95 for VH and 0.99 for NVH. Twenty-nine patients with VH and repeat negative urinalysis on assessment had a positive urine culture suggesting a UTI as a cause. None of these patients was found to have urothelial cancer ( p = 0.0413). Conclusion: Patients who experience transient VH and subsequent repeat negative urinalysis in the absence of infection have a 5% chance of urothelial cancer and should still be investigated. For those with transient NVH, the probability of finding a urothelial cancer is <1%, although we did find a high-grade bladder tumour in this group. If patients have a positive urine culture and a negative repeat urinalysis following treatment, they could be spared haematuria investigations.
The development and testing of a modified natural rubber CR solid ankle–cushion heel prosthetic foot for developing countries
Authors: Sasaki Kazuhiko , Pinitlertsakun Jutamat , Rattanakoch Jutima , Sukthomya Sasithon , Guerra Gary , Latt Tuntun , De Silva Nirosha , Kanagarandnam Bamini , Suntharalingam Sharmila 
Published: June 2017

Background Durable and locally fabricated prosthetic feet are important for developing countries. Modifications to the current CR solid ankle–cushion heel prosthetic foot could enhance current foot characteristics and reduce costs. The goal of this project was to modify the keel and rubber outer foot shell to enhance features and reduce costs of the current CR solid ankle–cushion heel offering. Methods The prosthetic foot was designed, fabricated and then tested mechanically for strain and displacement in a cyclic testing machine according to a component of the ISO-10328 testing protocol. Dynamic cyclic testing of both forefoot and heel portions of the foot was conducted. Findings Dynamic mechanical cyclic testing of the forefoot and heel at 1.28 kN for two million cycles at a rate of 1 Hz was successfully achieved. The final cost of producing the foot was roughly $16 USD. Limitations include the inability to perform the full battery of ISO-10328 foot testing, UV testing and a limitation to laboratory testing. Clinical studies examining practical application of the modified foot should be conducted.
Oral mucosal melanoma
Authors: Khammissa RAG , Altini M , Meer S , Lemmer J , Feller L 
Published: June 2017

Background: Oral mucosal melanoma (OMM) is relatively rare, runs an aggressive course, affects most frequently the hard palate and the maxillary gingiva, and may be multifocal. The aetiological factors and the chain of molecular events that give rise to OMM and to its growth and metastasis are largely unknown. Objectives: The purpose of this retrospective study was to characterize some clinical and histopathological features of OMM in a South African sample. Materials and Methods: The histopathological reports and histological sections of 17 cases with OMM during the period 1968–2013 were retrospectively evaluated, and the data regarding age, gender, ethnicity/race and the histopathological patterns were recorded. c-Kit immunohistochemical staining was performed. Results: OMM most frequently affected the palate and the maxillary gingiva of black persons without gender predilection. The age of the patients ranged from 20 to 78 years with the mean age at diagnosis being 56 years. Most tumours were nodular comprising a mixture of polygonal and spindle cells at different ratios with and without junctional activity. Four cases (4 of 17; 23.5%) stained positively for c-Kit. The pattern of staining was diffuse in three cases and focal in one and was predominantly membranous. Conclusion: As almost invariably all OMM affects the palate and the gingiva of black persons, any melanotic hyperpigmentation at these sites should be biopsied and microscopically examined. Any hyperpigmentation that microscopically show proliferation of atypical melanocytes should be excised.
Why Does C5 Palsy Occur After Prophylactic Bilateral C4-5 Foraminotomy in Open-Door Cervical Laminoplasty? A Risk Factor Analysis
Authors: Liu Gabriel , Reyes Ma. Ramona , Riew K. Daniel 
Published: June 2017

Study Design: Retrospective study. Objectives: To evaluate the efficacy of bilateral C4-5 foraminotomy in preventing occurrence of postoperative C5 palsy and to identify possible risk factors for its development. Methods: A total of 70 consecutive patients who underwent open-door laminoplasty with bilateral C4-5 foraminotomy were included. Clinical, radiographic, and operative data was reviewed. Development of postoperative C5 palsy was analyzed. Results: A total of 54 males and 16 females were reviewed. Mean age was 56 years (range, 30-86 years). The primary pathology was spondylosis in 76% of cases and ossified posterior longitudinal ligament in 21%. Radiographic evidence of C4-5 foraminal stenosis was seen in 81% of the patients. The mean duration of preoperative symptoms was 7 ± 19 months. Four (5.7%) out of 70 patients developed C5 palsy after open-door laminoplasty with bilateral C4-5 foraminotomy. Multivariate analysis showed that a long duration of preoperative symptoms (>12 months) and the presence of preoperative C4-5 T2-MRI cord signal change were statistically significant risk factors for the development of C5 palsy even after bilateral C4-5 foraminotomy in open-door laminoplasty ( P < .0001 and P = .036, respectively). Conclusions: Prophylactic bilateral C4-5 foraminotomies do not completely eliminate the occurrence of C5 palsy. Prolonged duration of symptoms and presence of preoperative T2-MRI cord signal change increase the risk for developing postoperative C5 palsy despite foraminotomy.
Is Stand-Alone Anterior Lumbar Interbody Fusion a Safe and Efficacious Treatment for Isthmic Spondylolisthesis of L5-S1?
Authors: Viglione Luke L. , Chamoli Uphar , Diwan Ashish D. 
Published: June 2017

Study Design: A systematic review. Objective: The objective of this study was to determine the safety and efficacy of stand-alone anterior lumbar interbody fusion (sa-ALIF) for the treatment of symptomatic isthmic spondylolisthesis of L5-S1 by assessing the level of available clinical and radiographic evidence. Methods: A systematic review utilizing Medline, Embase, and Scopus online databases was undertaken. Clinical, radiographic, and adverse outcome data were extracted for the relevant isthmic spondylolisthesis cases with the intention of undertaking a meta-analysis. Results: The database search between January 1980 and December 2015 yielded 23 articles that concerned sa-ALIF for isthmic spondylolisthesis of L5-S1. Only in 9 of the 23 articles data could be extracted specific to sa-ALIF for isthmic spondylolisthesis of L5-S1. There was considerable inconsistency in the standards for reporting outcomes of the surgery due to which meta-analysis could not be undertaken, and hence each article was reviewed. Conclusions: There was insufficient evidence to support the safety and efficacy of sa-ALIF for the treatment of isthmic spondylolisthesis of L5-S1. Although sa-ALIF is widely documented in the literature, there was insufficient evidence to support its use in treating this specific pathology. The unique pathological and anatomical situation that isthmic spondylolisthesis of L5-S1 presents must be recognized and its treatment with sa-ALIF should be well thought out.
Solitary Osteochondroma of the Spine—A Case Series: Review of Solitary Osteochondroma With Myelopathic Symptoms
Authors: Yakkanti Ramakanth , Onyekwelu Ikemefuna , Carreon Leah Y. , Dimar John R. 
Published: June 2017

Study Design: Case series and literature review. Objective: There is a growing body of literature supporting that osteochondroma of the spine may not be as rare as previously documented. The purpose of this study was to perform an updated review and present our experience with 4 cases of solitary osteochondroma of the spine, including surgical treatment and subsequent outcomes. Methods: A review of 4 cases and an updated literature review. Results: All 4 cases were diagnosed as solitary osteochondroma of the spine based on clinical and histopathologic findings. Majority of the lesions arose from the posterior column with one case showing extension into the middle column with clinical neurologic sequelae. Treatment strategies for all cases included complete marginal excision of the lesions using a posterior approach. All 4 cases showed no radiographic evidence of recurrence. The literature review yielded 132 cases of solitary osteochondroma and 17 case associated with multiple hereditary exostosis. Out of the 132 cases, 36 presented with myelopathic symptoms. Conclusion: Osteochondroma of the spine may not be as rare as previously reported. The best approach to treatment in almost all symptomatic cases include wide surgical excision of the tumor. This should include complete resection of the cartilaginous cap of the tumor in an effort to prevent recurrence. When excision is performed properly, the outcomes are excellent with very low recurrence of the tumor.
IMPROVEMENT THE SUSTAINABILITY OF GRAIN PRODUCTION (ON THE PROCEEDINGS OF THE REPUBLIC OF TATARSTAN)
Authors: Авхадиев  , Avhadiev Fayaz , Мухаметгалиев  , Mukhametgaliev Farit , Ситдикова  , Sitdikova Landysh 
Published: June 2017

Grain farming is the basis of all agricultural production, the level of its development depends on the development of other sectors of agribusiness. The study of the status of grain production development level, identification of factors and justification of the main ways of grain production efficiency increasing is very important. Stability in grain production depends on the interconnected natural, biological, agronomic, environmental, economic and social factors. Definition of major change trends in productivity carries out by constructing dynamic series over a long period Annual yield valuation is a result of the influence of climatic conditions, as well as by the level of intensification of production, the state of the material and technical base. The average yield since 2005 is higher about 0.5 centner than till 2005. In 2015 grain yield was lower to 2.6 centners per 1 hectare, than the average for 2011-2014. On the basis of the study it can be noted that the optimal sown area in the Republic of Tatarstan is 6070 hectares per 1 agricultural organization, this level of the sown area of grain contributes to grain yield of 24.4 centners per 1 hetare, and the rate of costs’ payback at the level of 161.5%, the profitability level of 18.7%. According to Russian Statistical Service index the number of the population is 3868730 people. (2016). When one person daily consumes 150 grams grain products, as well as confectionery and similar products 40 grams daily, produced from crops, it is necessary to produce 2 566 778 tons of crops in order to feed this number of people. But it is also necessary to take care of the seeds, animal feed and insurance funds. Therefore, the problem of increasing the grain production sustainability and, on this basis, to increase its effectiveness is a top priority for all agricultural organizations and the country, as a whole.
Revenue-Maximizing Mechanisms with Strategic Customers and Unknown, Markovian Demand
Authors: Gershkov Alex , Moldovanu Benny , Strack Philipp 
Published: June 2017

We show that appropriate dynamic pricing strategies can be used to draw benefits from the presence of consumers who strategically time their purchase even if the arrival process is not known. In our model, a seller sells a stock of objects to a stream of randomly arriving long-lived agents. Agents are privately informed about their values, and about their arrival time to the market. The seller needs to learn about future demand from past arrivals. We characterize the revenue-maximizing direct mechanism. While the optimal mechanism cannot be reduced to posted prices (and requires personalized prices), we also present a simple, “learn and then sell” mechanism that is able to extract a large fraction of the maximal revenue. In this mechanism, the seller first charges a relatively low price that allows learning about the arrival process, and in a second stage, the seller charges the optimal posted price given the previously obtained information. The online appendix is available at https://doi.org/10.1287/mnsc.2017.2724 . This paper was accepted by Serguei Netessine, operations management.
The influence of cement thickness on stem subsidence and cement creep in a collarless polished tapered stem
Authors: Takahashi E. , Kaneuji A. , Tsuda R. , Numata Y. , Ichiseki T. , Fukui K. , Kawahara N. 
Published: June 2017

Objectives Favourable results for collarless polished tapered stems have been reported, and cement creep due to taper slip may be a contributing factor. However, the ideal cement thickness around polished stems remains unknown. We investigated the influence of cement thickness on stem subsidence and cement creep. Methods We cemented six collarless polished tapered (CPT) stems (two stems each of small, medium and large sizes) into composite femurs that had been reamed with a large CPT rasp to achieve various thicknesses of the cement mantle. Two or three tantalum balls were implanted in the proximal cement in each femur. A cyclic loading test was then performed for each stem. The migration of the balls was measured three-dimensionally, using a micro-computed tomography (CT) scanner, before and after loading. A digital displacement gauge was positioned at the stem shoulder, and stem subsidence was measured continuously by the gauge. Final stem subsidence was measured at the balls at the end of each stem. Results A strong positive correlation was observed between mean cement thickness and stem subsidence in the CT slices on the balls. In the small stems, the balls moved downward to almost the same extent as the stem. There was a significant negative correlation between cement thickness and the horizontal:downward ratio of ball movement. Conclusion Collarless polished tapered stems with thicker cement mantles resulted in greater subsidence of both stem and cement. This suggests that excessive thickness of the cement mantle may interfere with effective radial cement creep. Cite this article: E. Takahashi, A. Kaneuji, R. Tsuda, Y. Numata, T. Ichiseki, K. Fukui, N. Kawahara. The influence of cement thickness on stem subsidence and cement creep in a collarless polished tapered stem: When are thick cement mantles detrimental? Bone Joint Res 2017;6:–357. DOI: 10.1302/2046-3758.65.BJR-2017-0028.R1.
The New Russian Nationalism: Imperialism, Ethnicity and Authoritarianism 2000-2015
Authors: Horwirtz Rachael 
Published: June 2017

This useful and timely volume covers the growth of Russian nationalism from 2000 to 2015. It was in the process of completion during the annexation of Crimea in March 2014 and thus most of the chapters refer largely to events prior to that date, with some analytical coverage of how Russian nationalism has shaped public opinion of the annexation and subsequent Eastern Ukrainian conflict. It is thoroughly researched and yet accessible to the general reader, though with a few minor issues.
Read here.
Pedagogias feministas e de(s)coloniais nas artes da vida
Authors: Leal Mara Lucia , Schneider Alcure Adriana , Bacelar Camila Bastos , Azevedo Maria Thereza 
Published: June 2017

Os estudos de(s)coloniais e os estudos feministas interseccionais são teorias críticas que abordam a questão das diferenças pensando-as em articulação com as forças de subjetivação que descorporificam nossa relação com o mundo. Cada vez mais as artes da cena se mostram interessadas em refletir sobre si mesmas desde uma perspectiva corporificada, onde a subjetividade e a singularidade do corpo de quem compõe a cena estão presentes. Assim, pensar os processos criativos da cena contemporânea em articulação com estudos e pedagogias descoloniais e feministas possibilitaria que tais processos criativos adensassem questões de gênero, sexualidade, raça, etnia, classe, entre outras, que surgem com agudez em processos que reconhecem que vidas vivem em corpos e que visam trabalhar desde uma política de afetos.

ABSTRACT

The decolonial studies and intersectional feminist studies are critical theories that approach difference issues thinking them in articulation with the subjective forces that disembodies our relations to the world. Increasingly the arts scene show interest in reflecting about themselves from an embodied perspective where subjectivity and the singularity of the perfomers body are present. To think the creative processes of contemporary scene in articulation with feminists and decolonial pedagogies allows those creative processes to thicken issues related to gender, sexuality, race, ethnicity, class, among others, issues that come up sharpness in processes that recognize that lives are liven in bodies and that aim to work from the politics of affection.

KEYWORDS
Decoloniality, feminisms, body, performing arts, the art of living.
Estimation of Peak Muscle Power From a Countermovement Vertical Jump in Children and Adolescents
Authors: Gomez-Bruton Alejandro , Gabel Leigh , Nettlefold Lindsay , Macdonald Heather , Race Douglas , McKay Heather 
Published: June 2017

Abstract
Gomez-Bruton, A, Gabel, L, Nettlefold, L, Macdonald, H, Race, D, and McKay, H. Estimation of peak muscle power from a countermovement vertical jump in children and adolescents. J Strength Cond Res 33(2): 390–398, 2019—Several equations to predict muscle power (MP) from vertical jump height (VJH) have been developed in adults. However, few have been derived in children. We therefore aimed to: (a) evaluate the validity of existing MP estimation equations from a vertical countermovement jump (CMJ) in children and adolescents and (b) develop and validate a new MP estimation equation for use in children and adolescents. We measured peak MP (in watts) and VJH (in centimeters) during a CMJ using a force platform in 249 children and adolescents (9–17 years; 119 boys and 130 girls). We compared actual (force platform) with predicted (12 existing prediction equations) MP using repeated-measures analysis of variance and estimated bias using modified Bland-Altman plots. We developed a new prediction equation using stepwise linear regression, assessed predictive error using leave-one-out and 10-fold cross-validation, and externally validated the equation in an independent sample (n = 100). All existing prediction equations demonstrated some degree of bias, either systematic bias (mean differences ranging 178–1,377 W; 8–64%) or bias at the extremes or interactions with sex. Our new prediction equation estimates MP from VJH and body mass: Power (W) = 54.2 × VJH (cm) + 34.4 × body mass (kg) − 1,520.4. With this new equation, there was no difference between actual and predicted MP (0%) and negligible differences (0.2–0.9%) in R
2 and root mean square error between our observed and cross-validated sets. Actual and predicted MP were not different in our external validation (p = 0.12). The new equation demonstrates excellent validity and can be used to predict MP from a CMJ in children and adolescents.