bluuebunny/crossref_metadata_2025_split huggingface dataset:
Consistent patterns of rare earth element distribution in accessory minerals from rocks of mafic-ultramafic complexes
Authors: Lesnov Felix 
Published: March 2013

AbstractThis paper summarizes analytical data accumulated in the world literature and other materials about the regularities of the REE distribution in minerals contained in ultramafic and mafic rocks as accessory phases. These minerals are tentatively divided into two groups. The first includes garnets, zircons, apatites and perovskites, which can accumulate increased amounts of REE in their structure. The second consists of minerals whose structure can accumulate only limited contents of these trace elements. These are chrome-spinels, ilmenites, and micas. These minerals, in respect of REE geochemistry, are studied to a varying degree because of the different levels of accumulations of these elements, different degrees of occurrence in rocks, tiny sizes of their grains and other reasons. The analytical database formed on their basis includes about 600 original analyses. The overwhelming majority of presently available data on REE geochemistry in accessory minerals from ultramafic and mafic rocks have been published only in the recent 15 years. The studies became possible due to the development and introduction of new highly sensible microprobe analyses allowing detection of REE and many other trace elements in minerals grains directly in thin sections. The greatest numbers of these analyses were performed for garnets and zircons, fewer for apatites, and the fewest for chrome-spinels, ilmenites, micas, and perovskites. In general, the regularities of REE distribution in these minerals from ultramafic and mafic rocks are less studied compared to the rock-forming minerals from ultramafic and mafic rocks. Among the analytical methods, which were used to study the REE composition of accessory minerals, the most efficient was the mass-spectrometry with inductively coupled plasma (ICP-MS).
Inhibition of Cholesterol Biosynthesis in Hypercholesterolemia – Is It the Right Choice? / Inhibicija Biosinteze Holesterola u Hiperholesterolemiji – Da Li Je Pravi Izbor?
Authors: Coskun Abdurrahman , Serteser Mustafa , Unsal Ibrahim 
Published: March 2013

Summary
Cholesterol biosynthesis is a complex pathway comprising more than 20 biochemical reactions. Although the final product created in the pathway is cholesterol, the intermediate products, such as ubiquinone and dolichol, also provide vital metabolic functions. Statins are HGM-CoA reductase inhibitors that stop the production of cholesterol by directly inhibiting the mevalonate production. Mevalonate is a precursor of two additional vital molecules, squalene and ubiquinone (coenzyme Q10). We hypothesized that inhibiting the cholesterol biosynthesis with statins for an extended duration may potentiate the oxidative stress, neurodegenerative disease and cancer. Our recommendation was to measure muscle enzymes, antioxidant capacity, and ubiquinone to monitor patients receiving the statins for prolonged periods of time.
Modeling the Real Estate Prices in Olsztyn under Instability Conditions
Authors: Bełej Mirosław , Kulesza Sławomir 
Published: March 2013

Abstract
The paper deals with the description of the issues related to the dynamics of the real estate market in terms of sharp, unexpected changes in the housing prices which have been observed in the last decade in many European countries due to some macroeconomic circumstances. When such perturbations appear, the real estate market is said to be structurally unstable, since even a small variation in the control parameters might result in a large, structural change in the state of the whole system. The essential problem addressed in the paper is the need to define and discriminate between the intervals of stable and unstable real estate market development with special attention paid to the latter. The research aims at modeling hardly explored field of discontinuous changes in the real estate market in order to reveal the bifurcation edge. Assuming that the periods of sudden price changes reflect an intrinsic property of the real estate market, it is shown that the evolution path draws for most of the time a smooth curve onto the stability area of the equilibrium surface, and only briefly penetrates into the instability area to hop to another equilibrium state.
The Use of the Geographically Weighted Regression for the Real Estate Market Analysis
Authors: Cellmer Radosław 
Published: March 2013

Abstract
The article presents a method for developing geographically weighted regression models for analyzing real estate market transaction prices and evaluating the effect of selected property attributes on the prices and value of real estate. The property attributes were evaluated on a grading scale to determine the relative (percentage) indicators characterizing the relationships on the real estate market. The market data were analyzed to evaluate the influence of infrastructure availability on the prices of land in Olsztyn. The results were used to assess the effect of every utility service on the property transaction prices.
Statistical Forecasting of the Indicators of Polish Airport’s Operations
Authors: Fijorek Kamil , Leśniewska Agnieszka 
Published: March 2013

Abstract
From the perspective of airport management the knowledge of short-term future airport operation levels is a crucial part of the planning process. In this paper we evaluate the forecasting abilities of exponential smoothing (ETS) and seasonal autoregressive integrated moving average (SARIMA) models applied to the monthly time series of cargo transport, aircraft complete operations and passenger flows generated by selected Polish regional airports.
Innovative Mechanisms in Territorial Industrial Systems – Western Pomerania Case
Authors: Świadek Arkadiusz , Szopik-Depczyńska Katarzyna 
Published: March 2013

Abstract
The major objective of the paper is to show the results of research that was made in industrial enterprises of the West Pomeranian region. The main objective of the research was an attempt to find the variable determinants that have an impact of the relationships among enterprises on their innovative performance. The research was conducted within regional industrial systems and the basic aim was to define the constraints for a model regional structure of innovation network tailored to the needs of Poland and one of its regions.
Constrictive pericarditis - a difficult diagnosis
Authors: Opris Mihaela , Sglimbea Anca , Maier Anca , Bardas A. , Sirbu Voichita , Suciu H. 
Published: March 2013

Abstract
Constrictive pericarditis is an uncommon condition, often of unknown etiology. The diagnosis of constrictive pericarditis can be difficult and is often delayed, because the signs and symptoms of this disease can be falsely attributed to other causes. We report the case of a 62-year-old woman presented with a one year history of progressively worsening dyspnea, peripheral oedema, prominent jugular distension, hepatomegaly, ascites. The patient is known with a history of effusive pericarditis. Blood test showed a normal white cell count, anaemia, raised CRP. Chest X-Ray shows a normal sized heart and without calcification of the pericardium. The echocardiographic exam showed septal bounce-abrupt transient rightward movement, left, right ventricular size decreased-heart tubularin shape, mild atrial enlargement, IVC plethoric and unresponsive to respiration, hepatic veins dilated. Doppler echocardiographic findings were consistent with constrictive pericarditis. Cardiac catheterization showed elevation and equalization of diastolic filling pressures, and dips and plateau configuration of ventricular pressure during diastole (square root sign). Based on these results pericardiectomy was necessary. Constrictive pericarditis was also confirmed at the time of surgery. The pericardium was found with thickening of up to 30 mm in some areas. Histopathological exam showed fibrosis and calcification within the pericardium with no evidence of malignancy or tuberculosis. The patient was discharged 10 days later. At 3 months she had no significant symptoms. Diagnosis of constrictive pericarditis remains challenging. Constrictive pericarditis should be suspected in patients with clinical features of right-sides heart failure. Echocardiography and cardiac catheterisation are important investigation in diagnosis of constrictive pericarditis and avoiding unnecessary treatments.
Pulmonary silicotuberculosis in an electrician male - Case report and literature review
Authors: Constandina Claudia , Raşcu Agripina , Trăilescu Ana Maria , Danteș Elena , Halichidis Stela , Arghir Oana Cristina 
Published: March 2013

Abstract
This is a case report of a pulmonary silicotuberculosis in a former smoker, male, 43 years old, having 21 years of occupational exposure to particulate coniotic-free crystalline-silicon dioxide as an electrician, developing symptoms as fever higher than 38°C, dry cough and diffuse chest pain, being diagnosed with miliary of the lung in 2002. Silicosis was confirmed later by histological exam obtained through an exploratory thoracotomy and it was included in the transient first to second stage of pneumoconiosis. Three years later, in July 2005, Pulmonary Tuberculosis was diagnosed by acid-fast stains positive smears. The evolution of the case was to a progressive deterioration till 2008, leading to silicosis stage III. Silicosis is a pulmonary fibrosis which must be always suspected in persons working in conditions of occupational exposure to dust of silicon dioxide, having suggestive radiological changes including micronodular radiological pattern or pseudotumoral one. Once the diagnosis of silicosis is confirmed, tuberculosis may be frequently associated. The more advanced silicosis is, the more the combination of the two diseases is commonly revealing and, often, the TB morbidity among workers in the silica industry exceeds that of general population. A hint orientation for the silicotuberculosis’ diagnosis, in this reported case, was represented by the radiological dynamic of the lesions. Tuberculosis lesions are less dense and imprecisely defined, located in upper lobes and develop necrotic centers.
Exploring the Relationship Between Training, Beliefs, and Teachers’ Corrective Feedback Practices: A Case Study of a Novice and an Experienced ESL Teacher
Authors: Junqueira Luciana , Kim YouJin 
Published: March 2013

Abstract:Using multiple data sources (observations, stimulated recalls, interviews), this study investigated the relationship between previous training, teaching experience, corrective feedback (CF) beliefs, and practices of a novice and an experienced ESL teacher. The findings revealed that both teachers provided similar amounts of CF and had comparable amounts of learner uptake and repair in their classes. However, the experienced teacher generated more teacher-learner interactions and more types of CF, which were also more balanced across linguistic targets. Teaching experience and teacher training did not appear to impact the teachers’ beliefs on the inefficacy of CF, while “apprenticeship of observation” seemed to have a greater influence on the belief systems of both teachers. These results point to several pedagogical implications for teacher education programs, which are discussed in the paper.
Surgical outcomes in recurrent glioma
Authors: Hoover Jason M. , Nwojo Macaulay , Puffer Ross , Mandrekar Jay , Meyer Fredric B. , Parney Ian F. 
Published: March 2013

Object
The object of this study was to assess outcomes after surgery for recurrent intracranial glioma.

Methods
The authors retrospectively reviewed cases involving adult patients with intracranial glioma patients undergoing initial surgery (biopsy or resection) and one or more additional surgeries at their institution.

Results
A total of 323 operations were performed in 131 patients. The median survival was 76 months after first surgery, 36 months after second, 24 months after third, and 26.5 months after 4 or more surgeries. The overall complication rate was 12.8% after first surgery, 27.0% after second (OR 2.52, p = 0.0068), 22.0% after third (OR 1.92, not statistically significant [NS]), and 22.2% after 4 or more (OR 1.95, NS). Neurological complications occurred in 4.8% of patients at first surgery, 12.1% at second (OR 2.7, p = 0.0437), 8.2% at third (OR 1.75, NS), and 11.1% at 4 or more surgeries (OR 2.4583, NS). Regional complications occurred in 6.2% after first surgery, 9.9% after second surgery (OR 2.30, p = 0.095), 13.7% after third surgery (OR 3.31, p = 0.015), and 22.2% after 4 or more surgeries (OR 5.95, p = 0.056). Systemic complications occurred in 3.2% after first surgery, in 7.3% after second surgery (OR 2.3, p = 0.NS), in 4.1% after third surgery (OR 1.3, NS), and 0% after 4 or more surgeries. Reduction in Karnofsky Performance Status score occurred in 0% after first surgery, 8.1% after second surgery (OR 3.13, p = 0.0018), 10.2% after third surgery (OR 5.52, p < 0.0001), and 11.1% after 4 or more surgeries (OR 1.037, NS).

Conclusions
Postoperative survival is relatively prolonged but complication risk increases in patients with glioma who undergo multiple cranial surgeries. The largest increase in neurological risk occurs between the first and second surgery. In contrast, regional complication risk increases consistently with each surgery. The risk of systemic complications is not significantly altered with increasing surgeries. However, these complications only result in a modestly increased risk of functional decline after 2 or more surgeries. These findings may help counsel patients considering multiple glioma surgeries.
Surgical management of multicentric diffuse low-grade gliomas: functional and oncological outcomes
Authors: Terakawa Yuzo , Yordanova Yordanka N. , Tate Matthew C. , Duffau Hugues 
Published: March 2013

Object
Multicentric diffuse low-grade gliomas (DLGGs) are defined as widely separated lesions in different lobes or hemispheres where there is no anatomical continuity between lesions. This condition is rare and its clinicopathological characteristics have been scarcely described in the literature. Here, the authors report the first consecutive surgical series of multicentric DLGGs with functional and oncological outcomes.

Methods
A retrospective review of patients surgically treated for histopathologically confirmed multicentric DLGGs between 2000 and 2012 was performed. Information regarding clinical features, surgical procedures, histopathological results, and clinical outcomes was collected and analyzed.

Results
Five consecutive patients were included in this study. There were 3 men and 2 women, whose mean age was 27.4 years (range 23–35 years). The mean follow-up period after surgery was 46 months (range 11–138 months). Gross-total or subtotal resection was achieved in all cases, using a single surgery in 3 patients and a 2-stage surgery in 2 patients. There was no mortality or permanent morbidity associated with surgery. The Karnofsky Performance Scale score ranged between 90 and 100 in all cases. Adjuvant chemotherapy was administered in 2 patients because of tumor regrowth with no malignant transformation.

Conclusions
Multicentric DLGGs can be removed safely without inducing severe permanent neurological deficits. Interestingly, a single-stage resection of multiple lesions within different lobes may be performed if tumors are located in the same hemisphere. Therefore, the authors suggest considering surgery as the first therapeutic option for multicentric DLGGs, as in solitary DLGGs.
Changes in temporal flow characteristics of CSF in Chiari malformation Type I with and without syringomyelia: implications for theory of syrinx development
Authors: Clarke Elizabeth C. , Stoodley Marcus A. , Bilston Lynne E. 
Published: March 2013

Object
The pathogenesis of syringomyelia in association with Chiari malformation Type I (CM-I) is unclear. Studies of patients with CM-I have shown alterations in the CSF velocity profile using cardiac-gated cine phase-contrast MRI, and computational simulations have demonstrated that temporal features of the CSF pulse could contribute to syrinx development or enlargement. Few studies have reported temporal characteristics of the CSF profile, and few studies have reported on CM-I patients with and without syringomyelia separately. This study was performed to determine whether specific temporal features of the CSF flow profile may underlie the development or enlargement of a syrinx in patients with CM-I.

Methods
Ten healthy volunteers and 18 patients with CM-I with (8 patients) and without (10 patients) syringomyelia were studied using cardiac-gated cine phase-contrast MRI, measuring the maximum CSF velocities in the cranial and caudal directions, the timing of these maximums relative to the cardiac cycle time, the timing of caudal flow onset, timing of cranial flow onset, and the duration of caudal flow.

Results
The caudal CSF flow was significantly faster (p ≤ 0.01) and earlier (p < 0.02) in patients without syringomyelia than in healthy volunteers and patients with syringomyelia. There were no significant differences in the CSF velocities between patients with syringomyelia and healthy volunteers. Patients with CM-I who had syringomyelia had a significantly later start of caudal CSF flow (p < 0.01) and earlier maximum cranial velocity (p = 0.03) than healthy volunteers, but the relative durations of caudal and cranial flow were not significantly different between any of the groups.

Conclusions
The significantly earlier arrival and earlier peak velocity of caudal CSF flow may underlie the development of syringomyelia in patients with CM-I, and after a syrinx develops the CSF flow profile appears to stabilize.
Intrarater and interrater reliability of the pediatric arteriovenous malformation compactness score in children
Authors: Frisoli Fabio A. , Lang Shih-Shan , Vossough Arastoo , Cahill Anne Marie , Heuer Gregory G. , Dahmoush Hisham M. , Storm Phillip B. , Beslow Lauren A. 
Published: March 2013

Object
Cerebral arteriovenous malformations (AVMs) have a higher postresection recurrence rate in children than in adults. The authors' previous study demonstrated that a diffuse AVM (low compactness score) predicts postresection recurrence. The aims of this study were to evaluate the intra- and interrater reliability of the AVM compactness score.

Methods
Angiograms of 24 patients assigned a preoperative compactness score (scale of 1–3; 1 = most diffuse, 3 = most compact) in the authors' previous study were rerated by the same pediatric neuroradiologist 9 months later. A pediatric neurosurgeon, pediatric neuroradiology fellow, and interventional radiologist blinded to each other's ratings, the original ratings, and AVM recurrence also rated each AVM's compactness. Intrarater and interrater reliability were calculated using the κ statistic.

Results
Of the 24 AVMs, scores by the original neuroradiologist were 1 in 6 patients, 2 in 16 patients, and 3 in 2 patients. Intrarater reliability was 1.0. The κ statistic among the 4 raters was 0.69 (95% CI 0.44–0.89), which indicates substantial reliability. The interrater reliability between the neuroradiologist and neuroradiology fellow was moderate (κ = 0.59 [95%CI 0.20–0.89]) and was substantial between the neuroradiologist and neurosurgeon (κ = 0.74 [95% CI 0.41–1.0]). The neuroradiologist and interventional radiologist had perfect agreement (κ = 1.0).

Conclusions
Intrarater and interrater reliability of the AVM compactness score were excellent and substantial, respectively. These results demonstrate that the AVM compactness score is reproducible. However, the neuroradiologist and interventional radiologist had perfect agreement, which indicates that the compactness score is applied most accurately by those with extensive angiography experience.
Stereotactic navigation with the O-arm for placement of S-2 alar iliac screws in pelvic lumbar fixation
Authors: Ray Wilson Z. , Ravindra Vijay M. , Schmidt Meic H. , Dailey Andrew T. 
Published: March 2013

Object
Pelvic fixation is a crucial adjunct to many lumbar fusions to avoid L5–S1 pseudarthrosis. It is useful for treatment of kyphoscoliosis, high-grade spondylolisthesis, L5–S1 pseudarthrosis, sacral tumors, lumbosacral dislocations, and osteomyelitis. The most popular method, iliac fixation, has drawbacks including hardware prominence, extensive muscle dissection, and the need for connection devices. S-2 alar iliac fixation provides a useful primary or salvage alternative. The authors describe their techniques for using stereotactic navigation for screw placement.

Methods
The O-arm Surgical Imaging System allowed for CT-quality multiplanar reconstructions of the pelvis, and registration to a StealthStation Treon provided intraoperative guidance. The authors describe their technique for performing computer-assisted S-2 alar iliac fixation for various indications in 18 patients during an 18-month period.

Results
All patients underwent successful bilateral placement of screws 80–100 mm in length. All placements were confirmed with a second multiplanar reconstruction. One screw was moved because of apparent anterior breach of the ilium. There were no immediate neurological or vascular complications due to screw placement. The screw length required additional instruments including a longer pedicle finder and tap.

Conclusions
Stereotactic guidance to navigate the placement of distal pelvic fixation with bilateral S-2 alar iliac fixation can be safely performed in patients with a variety of pathological conditions. Crossing the sacroiliac joint, choosing trajectory, and ensuring adequate screw length can all be enhanced with 3D image guidance. Long-term outcome studies are underway, specifically evaluating the sacroiliac joint.
Pour un revenu social... démonétarisé
Authors: Ariès Paul 
Published: March 2013

Le combat pour un revenu social épouse celui pour la gratuité des services publics. La gratuité est bien économiquement, écologiquement, socialement, politiquement, etc. Elle est une façon de susciter le désir et d’inventer une objection de croissance amoureuse du « bien-vivre ».
Considérer ensemble revenu inconditionnel et monnaie locale
Authors: Lepesant Michel 
Published: March 2013

Le versement d’une part du revenu inconditionnel (RI) en monnaie locale complémentaire (MLC) suffit-il à éviter les pièges de la monétarisation et de la désocialisation que courrait le RI ? Peut-être, à condition de ne pas tomber dans le piège symétrique d’une illimitation de la gratuité, à condition de ne pas jeter le bébé de la monnaie avec l’eau de l’argent. À condition de cadrer toute démarche de transformation sociale dans un espace écologique (défini par un plancher et un plafond). Ce qui est le cas pour le RI (qui est le plancher d’un espace écologique des revenus dont le plafond est le revenu maximum acceptable) ; ce qui est le cas pour une MLC qui s’inscrit entre le plancher du gratuit et le plafond de la chrématistique. À ces conditions, RI et MLC se renforceraient mutuellement : le versement d’une part du RI en MLC permettrait immédiatement à un projet de MLC d’atteindre la taille critique et transférerait au RI toutes les dimensions éthiques d’une MLC.
« De chacun (volontairement) selon ses capacités à chacun (inconditionnellement) selon ses besoins »
Authors: Mylondo Baptiste , Cottin-Marx Simon 
Published: March 2013

Philippe Van Parijs, philosophe et économiste belge, est l’une des figures modernes de la promotion de l’allocation universelle qu’il présente comme une voie capitaliste vers un communisme moderne. Dans cet entretien, il brosse le tableau de l’émergence de cette idée, les controverses qu’elle a suscitées et suscite encore autour de la question du travail. Militant, il revient également sur son engagement européen, écologiste, en faveur d’une réappropriation de l’urbain avec pour objectif d’offrir aux générations à venir « une vie meilleure ».