bluuebunny/crossref_metadata_2025_split huggingface dataset:
The clinical relevance of sound changes produced during cementless hip arthroplasty
Authors: McConnell J. S. , Saunders P. R. J. , Young S. K. 
Published: November 2018

Aims Cementless femoral stems must be correctly sized and well-seated to obtain satisfactory biological fixation. The change in sound that occurs during impaction of the femoral broach is said to indicate good fit, but this has not been widely studied. We set out to find whether the presence or absence of these sound changes could predict correct sizing. Patients and Methods We recorded the sound generated during femoral broaching for 105 cementless total hip arthroplasties using the Corail stem. Four cases were excluded, leaving 101 recordings for analysis. There were 36 male patients and 65 female patients, with a mean age of 69.9 years (sd 12.3) and median body mass index (BMI) of 29 kg/m 2 (interquartile range (IQR) 26 to 32). The recordings were analyzed to identify the frequencies of the sounds produced during impaction of the femoral broach. Results The emergence of a low-frequency band of sound in the 1 kHz range, during the final femoral broaching, was a strong predictor of a well-sized implant stem. The frequency was related to femoral length, supporting our hypothesis that the sound arose from the bone itself. Conclusion The low-frequency sound generated during femoral broaching can be monitored spectrographically, its frequency can be predicted from femoral length, and it is a good predictor of appropriate stem sizing.
The assessment of the stability of the tibial component of a novel knee arthroplasty system using radiostereometric analysis
Authors: Turgeon T. R. , Gascoyne T. C. , Laende E. K. , Dunbar M. J. , Bohm E. R. , Richardson C. G. 
Published: November 2018

Aims The introduction of a novel design of total knee arthroplasty (TKA) must achieve outcomes at least as good as existing designs. A novel design of TKA with a reducing radius of the femoral component and a modified cam-post articulation has been released and requires assessment of the fixation to bone. Radiostereometric analysis (RSA) of the components within the first two postoperative years has been shown to be predictive of medium- to long-term fixation. The aim of this study was to assess the stability of the tibial component of this system during this period of time using RSA. Patients and Methods A cohort of 30 patients underwent primary, cemented TKA using the novel posterior stabilized fixed-bearing (ATTUNE) design. There was an even distribution of men and women (15:15). The mean age of the patients was 64 years (sd 8) at the time of surgery; their mean body mass index (BMI) was 35.4 kg/m 2 (sd 7.9). RSA was used to assess the stability of the tibial component at 6, 12, and 24 months compared with a six-week baseline examination. Patient-reported outcome measures were also assessed. Results The mean maximum total point motion (MTPM) of the tibial component between 12 and 24 months postoperatively was 0.08 mm (sd 0.08), which is well below the published threshold of 0.2 mm (p < 0.001). Patient-reported outcome measures consistently improved. Conclusion The tibial component of this novel design of TKA showed stability between assessment 12 and 24 months postoperatively, suggesting an acceptably low risk of medium- to long-term failure due to aseptic loosening.
The influence of compressive forces across the patellofemoral joint on patient-reported outcome after bi-cruciate stabilized total knee arthroplasty
Authors: Kaneko T. , Kono N. , Mochizuki Y. , Hada M. , Sunakawa T. , Ikegami H. , Musha Y. 
Published: November 2018

AimsPatellofemoral problems are a common complication of total knee arthroplasty. A high compressive force across the patellofemoral joint may affect patient-reported outcome. However, the relationship between patient-reported outcome and the intraoperative patellofemoral contact force has not been investigated. The purpose of this study was to determine whether or not a high intraoperative patellofemoral compressive force affects patient-reported outcome.Patients and MethodsThis prospective study included 42 patients (42 knees) with varus-type osteoarthritis who underwent a bi-cruciate stabilized total knee arthroplasty and in whom the planned alignment was confirmed on 3D CT. Of the 42 patients, 36 were women and six were men. Their mean age was 72.3 years (61 to 87) and their mean body mass index (BMI) was 24.4 kg/m2(18.2 to 34.3). After implantation of the femoral and tibial components, the compressive force across the patellofemoral joint was measured at 10°, 30°, 60°, 90°, 120°, and 140° of flexion using a load cell (Kyowa Electronic Instruments Co., Ltd., Tokyo, Japan) manufactured in the same shape as the patellar implant. Multiple regression analyses were conducted to investigate the relationship between intraoperative patellofemoral compressive force and patient-reported outcome two years after implantation.ResultsNo patient had anterior knee pain after total knee arthroplasty. The compressive force across the patellofemoral joint at 140°of flexion was negatively correlated with patient satisfaction (R2= 0.458; β = –0.706; p = 0. 041) and Forgotten Joint Score-12 (FJS-12; R2= .378; β = –0.636; p = 0. 036). The compressive force across the patellofemoral joint at 60° of flexion was negatively correlated with the patella score (R2= 0.417; β = –0.688; p = 0. 046).ConclusionPatient satisfaction, FJS-12, and patella score were affected by the patellofemoral compressive force at 60° and 140° of flexion. Reduction of the patellofemoral compressive forces at 60° and 140° of flexion angle during total knee arthroplasty may improve patient-reported outcome, but has no effect on anterior knee pain.
Surgical treatment of primary malignant tumours of the distal tibia
Authors: Zhao Z-Q. , Yan T-Q. , Guo W. , Yang R-L. , Tang X-D. , Yang Y. 
Published: November 2018

AimsWe retrospectively report our experience of managing 30 patients with a primary malignant tumour of the distal tibia; 25 were treated by limb salvage surgery and five by amputation. We compared the clinical outcomes of following the use of different methods of reconstruction.Patients and MethodsThere were 19 male and 11 female patients. The mean age of the patients was 19 years (6 to 59) and the mean follow-up was 5.1 years (1.25 to 12.58). Massive allograft was used in 11 patients, and autograft was used in 14 patients. The time to union, the survival time of the reconstruction, complication rate, and functional outcomes following the different surgical techniques were compared. The overall patient survival was also recorded.ResultsOut of 14 patients treated with an autograft, 12 (86%) achieved union at both the proximal and distal junctions. The time to union at both junctions of the autograft was significantly shorter than in those treated with an allograft (11.1 vs 17.2 months, p = 0.02; 9.5 vs 16.2 months, p = 0.04). The complication rate of allograft reconstruction was 55%. The five patients treated with an amputation did not have a complication. Out of the 25 patients who were treated with limb salvage, three (12%) developed local recurrence and underwent amputation. The mean functional Musculoskeletal Tumor Society (MSTS) score after autograft reconstruction was higher than after allograft reconstruction (81% vs 67%; p = 0.06), and similar to that after amputation (81% vs 82%; p = 0.82). The two- and five-year overall rates of survival were 83% and 70%, respectively.ConclusionsThis consecutive case series supports the safety of limb salvage and the effectiveness of biological reconstruction after the resection of a primary tumour of the distal tibia. Autograft might be a preferable option. In some circumstances, below-knee amputation remains a valid option.
Early versus delayed surgery for paediatric supracondylar humeral fractures in the absence of vascular compromise
Authors: Farrow L. , Ablett A. D. , Mills L. , Barker S. 
Published: November 2018

Aims We set out to determine if there is a difference in perioperative outcomes between early and delayed surgery in paediatric supracondylar humeral fractures in the absence of vascular compromise through a systematic review and meta-analysis. Materials and Methods A literature search was performed, with search outputs screened for studies meeting the inclusion criteria. The groups of early surgery (ES) and delayed surgery (DS) were classified by study authors. The primary outcome measure was open reduction requirement. Meta-analysis was performed in the presence of sufficient study homogeneity. Individual study risk of bias was assessed using the Risk of Bias in Non-Randomised Studies – of Interventions (ROBINS-I) criteria, with the Grading of Recommendations, Assessment, Development and Evaluations (GRADE) criteria used to evaluate outcomes independently. Results A total of 12 studies met the inclusion criteria (1735 fractures). Pooled mean time to surgery from injury was and 10.7 hours for ES and 91.8 hours for DS. On meta-analysis there was no significant difference between ES versus DS for the outcome of open reduction requirement. There was also no significant difference for the outcomes: Iatrogenic nerve injury, pin site infection, and re-operation. The quality of evidence for all the individual outcomes was low or very low. Conclusions There is no evidence that delaying supracondylar fracture surgery negatively influences outcomes in the absence of vascular compromise. There are, however, notable limitations to the existing available literature.
Effect of several repair techniques on the bond strength between composite resin and degraded Y-TZP ceramic
Authors: Wandscher Vinícius Felipe , Brondani Luana , Pereira Gabriel Kalil Rocha , De Melo Renata Marques 
Published: November 2018

Objective: To evaluate the bond strength of different repair treatments for composite resin to aged Y-TZP ceramics. Material and Methods: Zirconia blocks were cut into smaller specimens, sintered according to manufacturer’s recommendations (final dimensions of 4×4×3 mm), and randomly allocated into nine groups (n=15) according to the surface treatment and presence/absence of aging of the substrate (subjected to low-temperature degradation - LTD), as follows: without LTD (Control: without treatment; TBS: tribochemical silica coating + silane + adhesive); with LTD (Control-LTD: without treatment; TBS-LTD: TBS with hydrothermal degradation; MoS-LTD: Monobond S + adhesive; MoP-LTD: Monobond Plus + adhesive; MZP-LTD: Metal/Zirconia Primer + adhesive; USB-LTD: Single Bond Universal; AP-LTD: Alloy primer + adhesive). LTD was simulated in an autoclave (134 °C, 2 bar, 5 h). The ceramic blocks were embedded in PVC cylinders with a self-curing acrylic resin; each surface treatment protocol was performed; a composite resin cylinder (Æ: 3.25 mm and height: 3 mm) was then build-up using split metallic matrices. All the specimens were aged (thermocycling + storage in water for 90 days) and subjected to the shear bond strength test using a universal testing machine (1 mm/min). The failure mode was classified into four types: adhesive, composite resin cohesive fracture, ceramic cohesive fracture, and mixed. The bond strength values were subjected to Mann–Whitney test. Results: Only air-abraded samples (TBS and TBS–LTD) survived thermocycling. More than 80% of the samples of the other groups presented pre-test failures. TBS groups presented higher values of bond strength (3.94) compared to TBS-LTD (0.96). The predominant type of failure for the surviving samples were adhesive. Conclusion: Air particle abrasion is mandatory to improve the bond strength of the Y-TZP substrate; an aged substrate presents an even more unfavorable scenario for adhesion.Keywords Dental prosthesis repair; Hydrothermal degradation; Zirconia; Shear bond strength; Sandblasting.
Sensitivity and specificity of different indexes used to diagnose Temporomandibular Disorders
Authors: Dantas Isabelle Sousa , Cordeiro Jairo Matozinho , Câmara-Souza Mariana Barbosa , De Resende Camila Maria Bastos Machado , Oliveira Angelo Giuseppe Roncalli da Costa , Barbosa Gustavo Augusto Seabra 
Published: November 2018

Objective: To verify the level of agreement among different indexes used to achieve the prevalence of Temporomandibular Disorders (TMD). Material and Methods: One hundred one dental students were selected by a randomized process. TMD were evaluated by the Fonseca’s Anamnestic Index (FAI), Helkimo’s Clinical Index (HCI), and the Research Diagnostic Criteria for TMD (RDC/TMD). Data was analyzed using Chi-square and Kappa tests, considering a significance level of 5%. Results: HCI showed the highest prevalence of TMD, and the comparison between RDC/TMD, FAI, and HCI showed low agreement (k=0.17 and k=0.35 respectively). Most individuals presented mild TMD for both FAI and HCI indexes. A moderate correlation for TMD severity was obtained (kw=0.53) between FAI and HCI, and a high sensitivity and low specificity were observed for both diagnosis when compared to RDC/TMD. Conclusion: The prevalence of TMD may vary significantly depending on the index used for its diagnosis, which may lead to a large number of false positives and overtreatments. Keywords: Epidemiology; Prevalence; Temporomandibular joint; Temporomandibular joint disorders; Young adult.
Influence of insulated glass units thickness and weight reduction on their functional properties
Authors: Respondek Zbigniew 
Published: November 2018

Abstract
Multi-glazed Insulated Glass Units (IGUs) are commonly used in the building industry. Larger number of gas-filled gaps is beneficial with regard to decrease of thermal losses in glazing, however the increased weight and thickness of a glazing unit cause additional difficulties during production, transport and installation of such elements. This disadvantage may be partially eliminated by using glass panes with thickness lower than 4 mm and by decreasing the thickness of gas-filled gaps between the individual glass panes. This article analyses the influence of reduction of weight and thickness of glass panes thickness and gas-filled gaps onto their functional properties. The analysis concerned two aspects: heat losses through glazing and static values occurring in IGUs loaded with changes in atmospheric pressure, temperature and wind pressure. Thermal transmittance and static values were defined for individual variations of structures’ construction on basis of adopted calculation models. It was demonstrated that using glass panes of thickness 2 and 3 mm is justified in IGUs with respect to changes of atmospheric pressure and temperature. The IGU structures with glass panes of reduced thickness have shown larger deflections and stress when subject to wind load. The thickness reduction of gas-filled gaps is beneficial with respect to decrease of resultant load caused by climatic factors, however it causes an increase in heat loss.
The lexical and discourse functions of grammatical gender in Marathi
Authors: Eliasson Pär , Tang Marc 
Published: November 2018

Abstract
We provide a functional analysis of the grammatical gender system of Marathi (Indo-Aryan) in Western India. The majority of the new Indo-Aryan languages typically classifies each noun of the lexicon according to biological gender as masculine and feminine. Only a few Indo-Aryan languages such as Marathi diverge in terms of agreement pattern by categorizing nouns as masculine, feminine, and neuter. Yet gender in Marathi has not been extensively described in terms of functions. We thus use apply functional typology to analyze grammatical gender in Marathi and provide detailed examples of its lexical and discourse functions.
Jüdische Buchkultur in der Weimarer Republik. Der Welt-Verlag, Berlin (1918–1933)
Authors: Kilcher Andreas B. 
Published: November 2018

Abstract
Der Welt-Verlag wurde Ende 1918 in Berlin von Davis Trietsch zusammen mit Alwin Loewenthal neu begründet und entwickelte sich innerhalb kurzer Zeit zu einem wichtigen Unternehmen innerhalb des dichten Netzwerks jüdischer Verlage in der Weimarer Republik. Im Umfeld der zionistischen Bewegung entstanden, blieb der Verlag institutionell und parteilich unabhängig und konnte damit gerade unter der Leitung von Ahron Eliasberg in seiner Tätigkeit bis 1933 ganz unterschiedliche politische Positionen aufnehmen. In den hier publizierten Büchern und Zeitschriften wird aus der Retrospektive ein besonderer Einsatz vornehmlich für eine Neudefinition der deutschsprachigen jüdischen Literatur und Kunst sichtbar, der auch eine spezifische buchkünstlerische Gestaltung bedingte. Der Beitrag rekonstruiert die inhaltlichen und programmatischen Grundzüge der Verlagsarbeit und thematisiert dabei auch die politischen und ökonomischen Herausforderungen jener Epoche.
To “Fish from the Pearls of the Jewish Spirit”: The Cultural Agenda of the Eschkol Publishing House
Authors: Engelhardt Arndt 
Published: November 2018

Abstract
In 1922, philosopher Jakob Klatzkin (1882–1948) and Zionist politician and later president of the World Jewish Congress, Nahum Goldmann (1895–1982) founded the Eschkol publishing company in Berlin and began their major work on the Encyclopaedia Judaica (1928–1934). Eschkol was active during the Weimar Republic, where culture and politics were shaped by a Jewish renaissance and by the sustained migration of Jews from Eastern Europe. Most of the publisher’s books and brochures show emblematic historical ruptures and the migration of knowledge to new spaces, languages, and cultures. This article analyzes Eschkol’s publications and cultural agenda from the perspective of a material culture of printed works, and focuses on its textbook program. It concentrates the discussion on the historian Simon Bernfeld (1860–1940) and Jakob Klatzkin, two formative scholars of that period.
Das Programm der Soncino-Gesellschaft der Freunde des jüdischen Buches
Authors: Jensen Bernhard 
Published: November 2018

Abstract
Die Soncino-Gesellschaft war ein bibliophiler Verein, der sich 1924 in Berlin gründete und bis zu seiner Auflösung 1937 über hundert Publikationen aus vielen Gebieten der jüdischen Geschichte und Kultur herausgegeben hat. Sie versammelte Mitglieder aus allen Strömungen des Judentums unter ihrem Dach und entwickelte sich mit ihrem Anspruch, ästhetische Vorbilder für das jüdische Buch zu geben, zu einem jüdischen Integrationsprojekt. Der Beitrag geht den kulturzionistischen Bruchlinien nach, die sich in der zionistischen Rezeption, dem Streit um die hebräische Bibelausgabe und der Positionierung einiger prominenter Protagonisten der Soncino-Gesellschaft zeigen. Diese Bruchlinien blieben jedoch so marginal, dass sie den bibliophilen Konsens nicht gefährdeten. Im historischen Rückblick kann das Programm der Soncino-Gesellschaft vielmehr als Kanon der deutsch-jüdischen Integration in der Diaspora gelesen werden.
Crystal structure of ethyl 2-amino-4-(4-bromothiophen-2-yl)-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carboxylate, C16H16BrNO4S
Authors: Yan Jun-Feng , Xiong Xin , He Hai-Lei 
Published: November 2018

Abstract
C16H16BrNO4S, monoclinic, P21/c (no. 14), a = 9.649(4) Å, b = 15.108(4) Å, c = 14.994(5) Å, β = 128.65(2)°, V = 1707.0(11) Å3, Z = 4, R
gt(F) = 0.0444, wR
ref(F
2) = 0.0999, T = 293(2) K.
Crystal structure of 3-nitroquinoline 1-oxide, C9H6N2O3
Authors: Mi Xia , Wang Xinling 
Published: November 2018

Abstract
C9H6N2O3, monoclinic, P21/n (no. 14), a = 8.7156(3) Å, b = 9.4003(3) Å, c = 19.8188(7) Å, V = 1610.12(10) Å3, Z = 8, R
gt(F) = 0.0491, wR
ref(F
2) = 0.1347, T = 291(2) K.
Renditeeffekte beim Ankauf von Unternehmensanleihen in Deutschland
Authors: Mietzner Mark , Göbell Moritz , Schiereck Dirk 
Published: November 2018

Zusammenfassung
Mit dem Programm zum Kauf von Vermögenswerten hat die Europäische Zentralbank nicht nur eine Politik der quantitativen Lockerung im Euro-Raum eingeleitet, sondern kauft nun auch gezielt Staats- und Unternehmensanleihen in großen Volumina. Ziel dieser unkonventionellen Maßnahme ist ein Sinken der langfristigen Zinsen, auf dass verbesserte Finanzierungskonditionen für Unternehmen die gesamtwirtschaftliche Aktivität anregen. Mit Hilfe der Ereignisstudienmethodik untersuchen die Autoren die Auswirkungen des Programms zum Ankauf von Unternehmensanleihen auf Preise und Renditen von Unternehmensanleihen für Deutschland. Die Ergebnisse zeigen, dass die Ankündigung des Kaufprogramms zu steigenden Wertpapierpreisen und sinkenden Renditen führt. Dies lässt die Schlussfolgerung zu, dass eine quantitative Lockerung einen positiven Effekt auf Wertpapierpreise und Finanzierungskonditionen hat und damit tatsächlich eine realwirtschaftliche Wirkung entfalten kann.
Sekt oder Selters? – Ökonomische Folgen der Reformzurückhaltung bei der Beendigung des Solidaritätszuschlags
Authors: Strohner Ludwig , Berger Johannes , Thomas Tobias 
Published: November 2018

ZusammenfassungWährend der Sachverständigenrat zur Begutachtung der gesamtwirtschaftlichen Entwicklung die vollständige Abschaffung des Solidaritätszuschlags nach dem Auslaufen des Solidarpakts II empfiehlt, ist im Koalitionsvertrag der Bundesregierung lediglich vorgesehen, die Einkommensteuer teilweise vom Zuschlag zu befreien. Die Simulationen beider Reformszenarien mit dem allgemeinen dynamischen Gleichgewichtsmodell PuMA zeigen, dass infolge der Reformzurückhaltung erhebliche Wohlstandgewinne nicht realisiert würden. Im Vergleich fällt das BIP bereits kurzfristig um 0,2 Prozent (langfristig 0,3 Prozent) geringer aus. Damit verbunden ist eine um 35.000 Personen (langfristig 40.000) geringere Beschäftigung. Auch die Nettoeinkommen privater Haushalte würden weniger kräftig steigen. Der Selbstfinanzierungsgrad der Reformen macht kurzfristig in beiden Szenarien mehr als 40 Prozent (langfristig 50 Prozent) aus. Effektiv würden demnach die im Koalitionsvertrag veranschlagten 10 Mrd. Euro zur Finanzierung einer vollständigen Abschaffung des Solidaritätszuschlags ausreichen. Zusammen mit den gegenwärtigen Überschüssen zeigt dies, dass eine vollständige Abschaffung des Solidaritätszuschlags möglich wäre, ohne die Solidität der öffentlichen Finanzen zu gefährden.
Handelspolitik mit Afrika und Bekämpfung von Fluchtursachen
Authors: Klasen Stephan 
Published: November 2018

Abstract
There is renewed interest in Europe to deepen trade with Africa in the hope that this will reduce migrant flows. While improved trade with Africa will not reduce but likely stimulate migrant flows, it could promote African development and further European long-term economic interests. To deepen trade, this article argues for further trade integration with North Africa with a long-term EU membership perspective. To further trade with Sub Saharan Africa, it suggests greater use of unilateral trade opening on the part of the EU, including more flexible application of rules of origin.
Bifurcation Analysis for Peristaltic Transport of a Power-Law Fluid
Authors: Ali Nasir , Ullah Kaleem 
Published: November 2018

Abstract
In this work, the streamline topologies and their bifurcations for peristaltic transport of shear-thinning and shear-thickening fluids characterised by power-law model are analysed. The flow is assumed in a two-dimensional symmetric channel. The analytical solution is obtained in a wave frame of reference under low Reynolds number and long wavelength approximations. To study the streamline topologies, a system of non-linear autonomous differential equations is formed and the method of dynamical system is employed to investigate the bifurcations and their changes. Three different types of flow situations occur: backward flow, trapping and augmented flow. The conversions of backward flow to trapping and then trapping to augmented flow correspond to bifurcations. The stability and nature of bifurcations and their topological changes are explained graphically. For this purpose, a global bifurcation diagram is constructed. The backward flow and trapping regions are significantly affected by fluid behaviour index. In fact, the trapping region expands and the backward region shrinks by increasing the fluid behaviour index. Theoretical results are verified by comparing them with the experimental data, which is available in the literature.