bluuebunny/crossref_metadata_2025_split huggingface dataset:
Comparison of contemporary periacetabular osteotomy for hip dysplasia with total hip arthroplasty for hip osteoarthritis
Authors: Gray B. L. , Stambough J. B. , Baca G. R. , Schoenecker P. L. , Clohisy J. C. 
Published: October 2015

We report patient-reported outcomes and complications associated with contemporary periacetabular osteotomy (PAO) surgery in treating symptomatic acetabular dysplasia and compare these outcomes with total hip arthroplasty (THA) in patients with similar demographic details. Two consecutive cohorts included patients between aged 18 to 40 years who had undergone either PAO (100 hips; 24 male, 76 female) or THA (55 hips; 18 male, 37 female). At a mean follow-up of 5.9 years (2 to 13), there was significant improvement in the modified Harris hip pain (p < 0.001, PAO and p < 0.001, THA), function (p < 0.001, PAO and p = 0.001, THA), and total scores (p < 0.001, PAO and p < 0.001, THA) within each cohort. There were no significant differences in the clinical outcome scores between the groups. Complication rates were low and similar in each cohort (p = 0.68). Similar to THA, contemporary PAO surgery is a clinically effective procedure that improves function and activity levels, provides pain relief and is associated with an acceptable complication rate.Cite this article: Bone Joint J 2015;97-B:1322–7.
Pain after total knee arthroplasty
Authors: Lavand'homme P. , Thienpont E. 
Published: October 2015

The patient with a painful arthritic knee awaiting total knee arthroplasty (TKA) requires a multidisciplinary approach. Optimal control of acute post-operative pain and the prevention of chronic persistent pain remains a challenge. The aim of this paper is to evaluate whether stratification of patients can help identify those who are at particular risk for severe acute or chronic pain. Intense acute post-operative pain, which is itself a risk factor for chronic pain, is more common in younger, obese female patients and those suffering from central pain sensitisation. Pre-operative pain, in the knee or elsewhere in the body, predisposes to central sensitisation. Pain due to osteoarthritis of the knee may also trigger neuropathic pain and may be associated with chronic medication like opioids, leading to a state of nociceptive sensitisation called ‘opioid-induced hyperalgesia’. Finally, genetic and personality related risk factors may also put patients at a higher risk for the development of chronic pain. Those identified as at risk for chronic pain would benefit from specific peri-operative management including reduction in opioid intake pre-operatively, the peri-operative use of antihyperalgesic drugs such as ketamine and gabapentinoids, and a close post-operative follow-up in a dedicated chronic pain clinic. Cite this article: Bone Joint J 2015;97-B(10 Suppl A):45–8.
Are general surgeons able to accurately self-assess their level of technical skills?
Authors: Rizan C , Ansell J , Tilston TW , Warren N , Torkington J 
Published: October 2015

Introduction Self-assessment is a way of improving technical capabilities without the need for trainer feedback. It can identify areas for improvement and promote professional medical development. The aim of this review was to identify whether selfassessment is an accurate form of technical skills appraisal in general surgery. Methods The PubMed, MEDLINE®, Embase™ and Cochrane databases were searched for studies assessing the reliability of self-assessment of technical skills in general surgery. For each study, we recorded the skills assessed and the evaluation methods used. Common endpoints between studies were compared to provide recommendations based on the levels of evidence. Results Twelve studies met the inclusion criteria from 22,292 initial papers. There was no level 1 evidence published. All papers compared the correlation between self-appraisal versus an expert score but differed in the technical skills assessment and the evaluation tools used. The accuracy of self-assessment improved with increasing experience (level 2 recommendation), age (level 3 recommendation) and the use of video playback (level 3 recommendation). Accuracy was reduced by stressful learning environments (level 2 recommendation), lack of familiarity with assessment tools (level 3 recommendation) and in advanced surgical procedures (level 3 recommendation). Conclusions Evidence exists to support the reliability of self-assessment of technical skills in general surgery. Several variables have been shown to affect the accuracy of self-assessment of technical skills. Future work should focus on evaluating the reliability of self-assessment during live operating procedures.
Mid-Infrared Features of Kaolinite-Dickite
Authors: Cuadros Javier , Vega Raquel , Toscano Alejandro 
Published: October 2015

AbstractTransformation of kaolinite to dickite is a common diagenetic reaction. The present report is part of a wider study to investigate the pathways of this polytype change. Fourier-transform infrared spectroscopy (FTIR) was used to attempt quantification of the relative proportions of kaolinite and dickite, validated by X-ray diffraction (XRD) results, in order to link mineral and structural features during the mineralogical changes. A group of kaolinite and dickite samples was investigated: 13 samples from the Frøy and Rind oil fields (North Sea), three kaolinite specimens with different crystal order and particle size (KGa-2, kaolinite API 17, Keokuk kaolinite), and two dickite-rich samples (Natural History Museum collection). Six FTIR spectral features were analyzed: (1) intensity ratio of the minima at 3675 and 3635 cm−1; (2) position of the band at ~1115 cm−1; (3) difference between the frequency of the bands at ~1030 and ~1000 cm−1; (4) intensity ratio of the bands generating shoulders at ~922 and ~900 cm−1; (5) position of the band at ~370 cm−1; and (6) intensity of the band at ~268 cm−1. Correlation of the features above with polytype relative proportions derived from XRD showed non-linear behavior, with maximum curvature at the dickite end, which precludes kaolinite-dickite quantification. Increasing kaolin particle size is known to cause decreased intensity of the FTIR spectra. A model was developed to test whether this effect is consistent with the non-linear progression of the IR features. The relative intensity of kaolinite and dickite IR features were calculated in a series of kaolinite-to-dickite transformations, where the size of particles increases with dickite proportion, and where dickite-dominated particles reach a larger size than kaolinite-dominated particles. The results indicated that the differential particle size increase is possibly the cause of the lack of linearity between IR- and XRD-measured dickite proportions.
Geology and Conditions of Formation of the Zeolite-Bearing Deposits Southeast of Ankara (Central Turkey)
Authors: Karakaya Muazzez Çelık , Karakaya Necatı , Yavuz Fuat 
Published: October 2015

AbstractThe pyroclastic sediments studied here contained varied amounts of zeolite and were formed in the saline alkaline Tuzgölü Basin following the alteration of dacitic volcanic materials during the Early to Late Miocene. The present study focused on the geological-geochemical properties of the zeolites and describes their formation. Mineralogical and chemical compositions were determined by X-ray diffraction, scanning electron microscopy, optical microscopy, and inductively coupled plasma mass spectrometry. Results indicated that the zeolitic tuffs consisted mainly of heulandite/clinoptilolite (Hul/Cpt), chabazite, erionite, and analcime associated with smectite. Smectite, calcite, and dolomite are abundant in the clay and carbonate layers which alternate with the zeolitic tuffs. K-feldspar, gypsum, and hexahydrite (MgSO4·6H2O) were also found in some altered tuffs and clay-marl layers as accessory minerals. The zeolite and other authigenic minerals showed weak stratigraphic zonation. Some vitric tuff layers contained no zeolite minerals and others were found to consist of almost pure Hul/Cpt and chabazite layers with economic potential. The rare earth elements (REE), large ion lithophile elements (LILE), and high-field strength elements (HFSE) in the Hul/Cpt-rich tuffs and vitric tuffs were enriched or depleted relative to the precursor rock, while many major elements were slightly or significantly depleted in all zeolitic tuffs. The amounts of REE in the chabazite- and erionite-rich tuffs were generally smaller than those in the precursor rock. The middle and heavy REE (MREE and HREE, respectively) were abundant in the Hul/Cpt-rich tuffs, tuffs, and smectitic bentonites. Chondrite-normalized REE values of the sample groups are characterized by sub-parallel patterns with enrichment in LREE relative to HREE. The mineral assemblages and geological setting indicated that zeolite diagenesis occurred in a saline-alkaline basin. The δ18O and δD compositions of the Hul/Cpt, chabazite, and smectite indicated that the minerals formed at low to moderate temperatures and that some of the zeolitization occurred due to diagenetic alteration under closed-system conditions that varied according to the nature of the basin and with the composition and physical properties of the volcanic materials.
A Novel N-Tetrasaccharide in Patients with Congenital Disorders of Glycosylation, Including Asparagine-Linked Glycosylation Protein 1, Phosphomannomutase 2, and Mannose Phosphate Isomerase Deficiencies
Authors: Zhang Wenyue , James Philip M , Ng Bobby G , Li Xueli , Xia Baoyun , Rong Jiang , Asif Ghazia , Raymond Kimiyo , Jones Melanie A , Hegde Madhuri , Ju Tongzhong , Cummings Richard D , Clarkson Katie , Wood Tim , Boerkoel Cornelius F , Freeze Hudson H , He Miao 
Published: October 2015

Abstract

BACKGROUND
Primary deficiencies in mannosylation of N-glycans are seen in a majority of patients with congenital disorders of glycosylation (CDG). We report the discovery of a series of novel N-glycans in sera, plasma, and cultured skin fibroblasts from patients with CDG having deficient mannosylation.

METHOD
We used LC-MS/MS and MALDI-TOF-MS analysis to identify and quantify a novel N-linked tetrasaccharide linked to the protein core, an N-tetrasaccharide (Neu5Acα2,6Galβ1,4-GlcNAcβ1,4GlcNAc) in plasma, serum glycoproteins, and a fibroblast lysate from patients with CDG caused by ALG1 [ALG1 (asparagine-linked glycosylation protein 1), chitobiosyldiphosphodolichol β-mannosyltransferase], PMM2 (phosphomannomutase 2), and MPI (mannose phosphate isomerase).

RESULTS
Glycoproteins in sera, plasma, or cell lysate from ALG1-CDG, PMM2-CDG, and MPI-CDG patients had substantially more N-tetrasaccharide than unaffected controls. We observed a &gt;80% decline in relative concentrations of the N-tetrasaccharide in MPI-CDG plasma after mannose therapy in 1 patient and in ALG1-CDG fibroblasts in vitro supplemented with mannose.

CONCLUSIONS
This novel N-tetrasaccharide could serve as a diagnostic marker of ALG1-, PMM2-, or MPI-CDG for screening of these 3 common CDG subtypes that comprise &gt;70% of CDG type I patients. Its quantification by LC-MS/MS may be useful for monitoring therapeutic efficacy of mannose. The discovery of these small N-glycans also indicates the presence of an alternative pathway in N-glycosylation not recognized previously, but its biological significance remains to be studied.
Jump Lisbon! Notes from an ethnography of urban flows
Authors: Ferro Lígia 
Published: October 2015

Abstract
Parkour is a relatively new practice in Portugal. It became popular in Lisbon because it has some public places, including Telheiras and the Parque das Nações, that are appreciated by parkour protagonists. Telheiras has a very special architecture that is ideal for parkour jumping, while the Parque das Nações is a renewed part of the city with good areas and is well served by public transport promoting the meetings between traceurs from across the city and the country. Focusing on the results of an ethnography that has these two points as its main research fields, we will discuss how an examination of these practices requires the construction of an ethnography of urban flows within a multi-scale analysis. This article is based on the results of doctoral research. Intensive fieldwork was carried out with participant observation and the use of ethnographic methodology in an attempt to understand the traceurs’ map of Lisbon.
What are the best policies for fighting poverty? Learning from the recent European experience
Authors: Marques Paulo , Salavisa Isabel , Lagoa Sérgio 
Published: October 2015

Abstract
Contrary to all expectations and policy goals, poverty is on the rise in the European Union (EU). In fact, one of the headline targets of the current Europe 2020 strategy is precisely to lift at least 20 million people out of the risk of poverty or social exclusion. This setback can be largely explained by the crisis. Eventually, cohesion and political legitimacy may be put in jeopardy. Therefore, the growth in poverty calls for the adoption of adequate policies at the European and domestic levels, taking into account past experience and the diversity of national contexts. However, the inability to tackle poverty was already evident between 2000 and 2010. During this period, European social policy underwent a paradigm shift that emphasized activation measures rather than just income redistribution. This article explains this change by arguing that the deepening of the internal market, European diversity and the goal of sustaining the core European acquis were the underlying reasons behind this transition. The impact of this change on poverty and inequality during the last decade is also assessed. Econometric estimations show that the drivers of poverty and the drivers of inequality are different, suggesting that distinct approaches are required for each of these problems. We claim that the traditional redistributive policies remain the most effective way of fighting poverty and that although activation policies have had a positive impact on reducing inequality, they have not been able to combat poverty effectively.
Electromyographic evaluation of superficial masseter and anterior temporal muscles after using cyclobenzaprine during extraction of impacted third molars
Authors: Raldi Fernando Vagner , Ribeiro Rafael do Carmo , Dos Santos Lucio Murilo , Nascimento Rodrigo Dias , Amorim José Benedito Oliveira , De Moraes Michelle Bianchi 
Published: October 2015

Objective: The influence of cyclobenzaprine hydrochloride (Miosan®,10mg/orally/single dose), taken prior to the extraction of impacted mandibular third molars on the electrical activity of superficial masseter and anterior temporal muscles was evaluated through electromyographic recordings aiming at contributing to the discussion of the diagnosis of stomatognathic dysfunctions in relation to long lasting operative procedures. Material and Methods: Twenty patients referred for the extraction of impacted and embedded mandibular third molars at the Discipline of Oral and maxillofacial Surgery and Traumatology (Institute of Science and Technology of São José dos Campos/Unesp), without systemic disease and allergic reactions to the drugs used, both sexes were selected. An electromyographer model EMG-800C (EMG System do Brasil Ltd.), with four input channels, previously calibrated with active electrodes and 20-fold amplification gain was used together with a channel linked to the system to record the mouth opening (mandibular goniometer). The following conditions were assessed: rest, maximum voluntary isometric contraction, and maximum mouth opening, at the following periods: pre-surgical, surgical, and post-surgical (7, 15, and 30 days). Results: The electrical activity of the studied muscles was reduced at the beginning of the surgical procedure, but it did not significantly alter by the administration of the drug at all evaluated periods. The masseter muscle, after the drug administration, reestablished its activity just after the post-operative period, unlikely the control group, which reestablished the activity after 7 days. A significant mouth opening was seen for the comparison between control and experimental groups (p < 0.001). Conclusion: Thus, based on these results, we suggest that the single-dose myorelaxant taken prior to the surgical procedure interfere on the motor activity of the studied muscles. This approach can be useful as adjuvant therapy in patients exhibiting stomatognathic system dysfunctions causing damage to the masticatory system due to the presence of embedded mandibular third molar. Keywords: Myorelaxants; Third Molars; Electromyography; Cyclobenzaprine; Surgery.
Prevalence of permanent teeth avulsion in a brazilian trauma center: a 12 years retrospective study
Authors: Rebouças Pedro Diniz , Macedo-Rodrigues Lorena Walesca , Santiago Adriana Kelly de Sousa , Gondim Juliane Oliveira , Moreira Neto José Jeová Siebra 
Published: October 2015

Objective: The aim of this study is to perform a retrospective study of cases of avulsion of permanent teeth in patients from 12 years of the Oraldental Trauma Center (CENTRAU) of the School of Dentistry of Faculty of Pharmacy, Dentistry and Nursing in Federal University of Ceara. Material and Methods: A retrospective transversal study characterized by direct observation of dental records was performed of a spontaneous demand sample of dental trauma victims who presented to the Oraldental Trauma Center of UFC (CENTRAU) during the period from May 2001 to May 2013 was conducted. Results: The analisys was done on 1,104 records,which 66 patients reported having been victims of avulsion with 88 avulsed permanent teeth with ages ranging between 6 and 30 years Among the 88 avulsed teeth, 59 (67.04%) were replanted. Only in 9 (15.5%) cases replantation was immediately. The storage medium that was the most widely used was the oral cavity by 8 (30.7%) patients. In 26 (39.4 %) cases, the cause of avulsion was falling to the ground. Conclusion: In this study, it was clear that cases of avulsion in CENTRAU corresponded to a low occurrence of all cases seen in the center.
Influence of sterilization process on cutting effectiveness and durability of ultrasonic tips
Authors: Boldieri Thalita , Bussaneli Diego , Rodrigues Jonas , Cardoso Katia , Josgrilberg Erika , Cordeiro Rita 
Published: October 2015

Objective: The aim was to evaluate influence of different sterilization methods on cutting effectiveness and durability of cylindrical ultrasonic burs compared with conventional cylindrical diamond-coated burs. Material and Methods: Fifteen conventional cylindrical diamond-coated (1092) (KG Sorensen) coupled to a high-speed turbine, and fifteen cylindrical ultrasonic (8.2137) (CVDentus®) burs coupled to an ultrasound-handpiece were used to perform standardized cavity preparations in healthy bovine tooth fragments, cleaned with rubber cup, pumice stone and water. After every 10 preparations, burs were sterilized 9 times in autoclave (SA), oven (SO), or cleaned with brush, soap and water (C). Fragments were weighed and microphotographs of burs were taken at the beginning and end of experiment. Another 9 conventional diamond-coated and 9 CVD burs underwent the same sterilization cycles in autoclave (SAC), oven (SOC) or washed with soap and water (CC) however, without being used for making cavity preparations, serving as control. Descriptive analyses were made of the values found by weighing and microphotography scores. Results: Statistically significant differences (Paired Student’s-t test) were observed among burs after sterilization (p = 0.0001). SO and SA did not influence cutting effectiveness and durability of ultrasonic and conventional diamond-coated burs. The microphotographs showed morphological differences between the burs used for preparation and the control. Conclusion: Sterilization by oven and autoclave did not influence cutting effectiveness and durability of CVD and conventional diamond-coated burs. Conventional diamond-coated burs presented greater structural alterations after performing cavity preparations and cleaning/sterilization procedures, irrespective of the process used.Keywords: cvdentus, sterilization, dental instruments, infection control.
Correlation between Body Mass Index and Dental Caries among a sample of Sudanese Children
Authors: Seid Ahmed Tyseer Elmekki , Abuaffan Amal 
Published: October 2015

Introduction: Obesity and dental caries have a serious impact on a child’s health; they can be potentially prevented by increasing the knowledge and awareness of proper oral hygiene practice in addition to healthy food consumption. Objective: To determine the correlation between body mass index and dental caries of a sample of 6-11 year old Sudanese children. Materials and Methods: A Cross sectional school based study was conducted. A total of 360 children (50% boys, 50% girls) were examined for body mass index and dental caries prevalence. Physical examination was done by recording the child’s height and weight to calculate the body mass index. Dental caries index was carried out following the WHO criteria. Results: The most prevalent body weight category was normal weight (60.6%) in both genders followed by the underweight group (28.3%), the overweight group (6.4%), and the obese group (4.7%). Boys exhibited a higher prevalence in the underweight category than girls, while overweight was more prevalent in girls (8.3%) than boys (4.4%). The mean dft for primary teeth was 4.68 in both genders and the mean DMFT for permanent teeth was 2.52 and 1.88 for girls and boys respectively. There was a negative correlation between dft and body weight category. No correlation between body weight category and DMFT was found. Conclusion: No correlation between dental caries and age-specific body weight category was found in permanent teeth while in primary teeth the underweight category was more related to the presence of dental caries than the other body weight categories. Key words: body mass index, normal weight, overweight, obesity, dental caries
Unruptured Sinus of Valsalva Aneurysm with Right Ventricular Outflow Tract Obstruction and Supracristal Ventricular Septal Defect: A Rare Case
Authors: Sridhar Ganiga Srinivasaiah , Sadiq Muhammad Athar , Ahmad Wan Azman Wan , Supuramaniam Chitra , Watson Timothy , Abidin Imran Zainal , Chee Kok Han 
Published: October 2015

Unruptured right sinus of Valsalva aneurysm that causes severe obstruction of the right ventricular outflow tract is extremely rare. We describe the case of a 47-year-old woman who presented with exertional dyspnea. Upon investigation, we discovered an unruptured right sinus of Valsalva aneurysm with associated right ventricular outflow tract obstruction and a supracristal ventricular septal defect. To our knowledge, only 2 such cases have previously been reported in the medical literature.
Although treatment of unruptured sinus of Valsalva aneurysm remains debatable, surgery should be considered for extremely large aneurysms or for progressive enlargement of the aneurysm on serial evaluation. Surgery was undertaken in our patient because there was clear evidence of right ventricular outflow tract obstruction, right-sided heart dilation, and associated exertional dyspnea.