bluuebunny/crossref_metadata_2025_split huggingface dataset:
CLIPPERS-Syndrom: Eine Erkrankung mit vielen Gesichtern – ein Fallbericht
Authors: Link Tanja Alexandra , Köcher Stephanie Eva , Dohmen Hildegard , Behr Robert , Neumann-Haefelin Tobias 
Published: October 2019

ZusammenfassungDas CLIPPERS-Syndrom ist ein chronisch entzündliches Krankheitsbild des ZNS unklarer Ätiologie, das erstmals 2010 durch die Arbeitsgruppe um Pittock beschrieben wurde. Es ist gekennzeichnet durch typische kernspintomographische Veränderungen, vorwiegend im Hirnstamm, mit entzündlichen perivaskulären, lymphohistiozytären Infiltraten und gutem Ansprechen auf eine Glukokortikoidtherapie. Hier möchten wir den Fall eines damals 40-jährigen Patienten vorstellen, der sich initial mit den typischen klinischen und bildmorphologischen Zeichen eines CLIPPERS-Syndroms vorstellte und unter immunsuppressiver Therapie zunächst eine komplette Remission erzielte. Zwei Jahre später erfolgte eine erneute Vorstellung wegen starker Kopfschmerzen. Das durchgeführte cMRT zeigte erneute, nun konfluierende Läsionen im Kleinhirn. Die erste Hirnbiopsie zeigte eine Lymphoproliferation, erst eine erneute Hirnbiopsie konnte schließlich die vermutete Diagnose eines primären ZNS-Lymphoms stellen.
Nachweis der BRAF-Mutation bei kaninen Prostataerkrankungen
Authors: Grassinger Julia M. , Aupperle-Lellbach Heike , Erhard Hanna , Merz Sophie , Klopfleisch Robert 
Published: October 2019

Zusammenfassung
Gegenstand und Ziel In der Literatur konnte in 80 % der Bioptate kaniner Prostatakarzinome (PCa) die BRAF-Mutation nachgewiesen werden. Ziele dieser Arbeit waren, kanine Prostataproben aus dem eigenen Tiergut hinsichtlich des Auftretens der BRAF-Mutation zu untersuchen sowie die Spezifität und Sensitivität des Tests zu evaluieren. Außerdem sollte die Methodik für zytologische Ausstriche etabliert und die Korrelation zwischen der BRAF-Mutation und dem histologischen Bild kaniner PCa dargestellt werden.
Material und Methoden Bioptate (n = 70) und Feinnadelaspirate (n = 17) der Prostata von 87 Hunden wurden histologisch oder zytologisch untersucht. Die Einteilung der Erkrankungen erfolgte wie in der Literatur beschrieben in benigne Prostatahyperplasie (BPH, n = 22), Prostatitis (n = 14), Plattenepithelmetaplasie (PM, n = 2), Atrophie nach Kastration (n = 3) und PCa (n = 46; davon zytologisch nachgewiesen n = 11). Für die PCa wurde der Gleason-Score ermittelt. Zur DNA-Isolierung dienten kommerzielle Testkits. Das Exon 15 wurde mit dem TaqMan® SNP Assay untersucht. Die Spezifität und Sensitivität des Tests wurden berechnet.
Ergebnisse Ein Gleason-Score von 6 und 7 ergab sich in je einem Fall, von 8 bis 10 bei 33 der PCa. Aus allen Proben ließ sich ausreichend DNA isolieren. Die BRAF-Mutation war in 28/46 PCa nachweisbar (Sensitivität 61 %). Bei keinem Hund mit BPH, Prostatitis, PM oder Atrophie wurde die BRAF-Mutation festgestellt (Spezifität 100 %). Durch die BRAF-Mutation verursachte PCa wiesen einen signifikant (p = 0,002) höheren Gleason-Score auf als PCa ohne diese Mutation.
Schlussfolgerung und klinische Relevanz Die Untersuchung auf das Vorliegen der BRAF-Variante V595E ist ein hochspezifisches Verfahren, mit dem sich in histologisch und zytologisch fraglichen Fällen die Verdachtsdiagnose eines PCa absichern lässt. Durch die BRAF-Mutation verursachte PCa zeigen histologisch stärker ausgeprägte Malignitätskriterien als nicht durch diese Mutation bedingte. Die klinische, therapeutische und prognostische Relevanz dieser Befunde bedarf weiterer Studien.
Blutgasanalyse beim Kaninchen während einer vollständig antagonisierbaren Anästhesie unter besonderer Berücksichtigung des Sauerstoffmanagements
Authors: Brezina Tina , Fehr Michael , Thöle Milena 
Published: October 2019

Zusammenfassung
Ziel Das Ziel dieser Studie war, die Auswirkung verschiedener Formen der Sauerstoffdarreichung auf die Werte der arteriellen Blutgasanalyse während einer Injektionsanästhesie darzustellen.
Material und Methoden Insgesamt 29 Kaninchen mit Zahnerkrankung (coronaler Überlänge) wurden vor, während und nach einer Okklusionskorrektur beprobt. Die Applikation von Sauerstoff erfolgte entweder per Flow-by-Methode oder über eine Sauerstoffbrille; in der Kontrollgruppe atmeten die Tiere Raumluft.
Ergebnisse Alle Patienten, die Sauerstoff erhalten hatten, entwickelten eine respiratorische Azidose, die sich über den Zeitraum der Anästhesie verstärkte. Zudem zeigten sie intraoperativ reduzierte Atemfrequenzen, aber dennoch erhöhte Sauerstoffparameter (Hyperoxämie) in der arteriellen Blutgasanalyse. Zwischen den beiden Methoden der Sauerstoffzufuhr ergab sich kein signifikanter Unterschied. In der Kontrollgruppe blieb der pH-Wert stabil, die Sauerstoffparameter sanken jedoch auf unter 80 mmHg (Hypoxämie).
Schlussfolgerung Obwohl es klinisch zu keiner sichtbaren Auswirkung der Hypoxämie oder Hyperoxämie kam, ist eine moderate Sauerstoffzufuhr während einer Injektionsanästhesie aufgrund der sich entwickelnden Hypoxämie empfehlenswert. Eine Balance zwischen Sauerstoffangebot und Überangebot sollte zukünftig ermittelt werden, um Schädigungen zu vermeiden.
Prophylactic Effect of Opuntia ficus indica Fruit Peel Extract against Irradiation-Induced Colon Injury in Rats
Authors: Elsawi Salma A. , Radwan Rasha R. , Elbatanony Marwa M. , El-Feky Amal M. , Sherif N. H. 
Published: October 2019

Abstract
Opuntia ficus-indica extract has been used in traditional folk medicine for several purposes and exhibits anti-inflammatory properties. This study was directed to explore the prophylactic effect of O. ficus-indica fruit peel extract against irradiation-induced colitis in rats. GC/MS analysis of the petroleum ether extract led to recognition of 33 compounds in the unsaponifiable fraction and 15 fatty acid methyl esters in the saponifiable part. Thirteen terpenes and sterols were isolated and identified from which ten compounds were not isolated from any part of this species before. Data showed that irradiation induced colon injury as manifested by elevated contents of malondialdehyde, nitric oxide, myeloperoxidase, intercellular adhesion molecule-1, cyclooxygenase-2, tumor necrosis factor alpha, and nuclear factor kappa B, while it reduced superoxide dismutase activity and interleukin 10 content in colonic tissues, which was confirmed by histopathological examination. Pretreatment with O. ficus-indica extract attenuated the alteration in the measured parameters. It could be concluded that O. ficus-indica fruit peel extract can be regarded as a potential agent in limiting colonic complications due to irradiation, possibly by its antioxidant and anti-inflammatory properties.
The Effect of Oral Health Knowledge, Attitude, and Practice on Periodontal Status among Dental Students
Authors: Ahmad Fatemah A. , Alotaibi Mazen K. , Baseer Mohammad Abdul , Shafshak Sanaa M. 
Published: October 2019

Abstract
Objectives The primary aim of the current study is to relate oral health knowledge, attitude, and oral hygiene practice with the periodontal condition of both undergraduate and postgraduate dental students.
Materials and Methods Data were collected through a combination of self-reported questionnaire and clinical examination. The estimated sample size was 246. Probing depths and clinical attachment loss were measured in interproximal sites, whereas the gingival index was calculated based on Ramfjord teeth. The Centers for Disease Control and the American Academy of Periodontology classification was used for periodontal diagnosis. The subjects were divided into three groups. Group 1 was composed of undergraduate, preclinical dental students, group 2 consisted of undergraduate clinical-year dental students, whereas group 3 included postgraduate residents.
Results A total of 296 dental students participated in this study. Significant differences were found among the groups in their oral health knowledge, attitude, and practice scores. Gingival disease was detected among most of the participants (99.2–100%) with significant differences between different educational levels (group 1 = 1.13, group 2 = 1.16, group 3 = 0.96, p-value = 0.001). Sixty percent of dental students were diagnosed with periodontal disease regardless of its severity. A positive correlation was established between oral health knowledge and attitude and oral hygiene practice. In addition, gingival inflammation severity and the severity of periodontal disease showed a positive correlation.
Conclusions This study highlighted the need to improve the oral health knowledge, attitude, and practice of dental students. Gingival and periodontal inflammation was highly prevalent among participants.
Cephalometric Evaluation of Vertical Dimension of Occlusion in Varying Malocclusions
Authors: Aggarwal Isha , Mallik Anindita , Mittal Sanjay , Bhullar Mandeep , Singla Divya , Goyal Merry 
Published: October 2019

Abstract
Introduction The aim of modern cephalometrics is to evaluate the relationship of skeletal and dental functional units of the face and to implement treatment to establish the position of the units horizontally and vertically. Establishing a correct occlusal vertical dimension is considered one of the most important aspects of facial esthetics for patients in need of orthodontic treatment.
Aim The aim of this study is to evaluate the vertical dimension of occlusion in varying dental malocclusions in Solan population.
Materials and Methods The sample consisted of pretreatment lateral cephalograms of 100 patients (50 Class I and 50 Class II div 1), aged 15 to 30 years; six angular and one linear parameters were measured to determine the vertical dimension of occlusion.
Results All the parameters (Frankfort-mandibular plane angle [FMA], Occl/Frankfort horizontal plane [FHA], angle of Y-axis, Occl/SN, GoGn/SN, and ANS-Me) were found to be decreased in Class I than in Class II div 1 malocclusion except (ANS-Xi-Pm). All the parameters were found to be statistically significant (p < 0.05) when compared between groups. When cephalometric norms of the present study were compared with Moroccan population, all parameters (ANS-Xi-Ptm, FMA, Occl/FH, Occl/SN, GoGn/SN, and ANS-Me) were found to be decreased in Solan population except angle of Y-axis. All the parameters were clinically significant (p < 0.05) except ANS-Xi-Pm and FMA that were found to be clinically nonsignificant (p > 0.05).
Conclusion Solan population has distinct cephalometric characteristics, which should be used as the reference in future orthodontic treatments.
Cholemic Nephropathy Reloaded
Authors: Fickert Peter , Rosenkranz Alexander R. 
Published: October 2019

AbstractAcute kidney injury (AKI) is a dreaded complication in patients with liver disease and jaundice, since it is associated with significant morbidity and mortality. Cholemic nephropathy (CN) is thought to represent a widely underestimated important cause of AKI in advanced liver diseases with jaundice. The umbrella term CN describes impaired renal function along with histomorphological changes consisting of intratubular cast formation and tubular epithelial cell injury directed primarily toward distal nephron segments. In cholestasis, biliary constituents may be excreted via the kidney and bilirubin or bile acids may trigger tubular injury and cast formation, but as we begin to understand the underlying pathophysiologic mechanisms, we become increasingly aware of the urgent need for clearly defined diagnostic criteria. In the following, we aim to summarize current knowledge of clinical and morphological characteristics of CN, discuss potential pathomechanisms, and raise key questions to stimulate evolution of a research strategy for CN.
Teaching in linguistically and culturally diverse secondary schools
Authors: Gleeson Margaret , Davison Chris 
Published: October 2019

AbstractThirty years ago Australian researchers led the development of language and content integration in schools, advocating systematic teaching of language across the curriculum to meet the needs of English as an additional language (EAL) students. However, despite significant improvements in initial teacher education, targeted professional development and language-specific curriculum and assessment, this paper suggests that secondary teachers have gained only a superficial understanding of the language knowledge necessary to teach EAL students. Drawing on questionnaires, interviews, and observations, this case study of two secondary schools in Sydney reveals the majority of teachers report their perspectives and experiences of good teaching have equipped them with a repertoire of sufficient strategies to meet EAL needs, and they see little difference between teaching EAL and learners with low levels of literacy. This paper concludes a renewed focus on integrating language and content teaching and partnership models of professional learning and evaluation are needed.
Do we X, Should/Shall we X, Let’s X
Authors: Sokol Robin 
Published: October 2019

Abstract
This article studies the formats Do we X, Should/Shall we X, and Let’s X in
order to deepen our understanding of face-to-face collaborative interactions at the computer. We use 6 hours of data of university
students collaborating in British and American English, and our methodology is Conversation Analysis. We demonstrate that the
participants display and orient to the immediacy/remoteness of the task, as well as their entitlement to carry out the proposed
task, when they put forward a proposed action. To do so, they use specific formats, specific verbs, and display specific tasks
depending on their needs, emerging from the unfolding of the collaboration. We argue that collaboration is not only a matter of
organising the accomplishment of a set of tasks, but also of displaying what kind of task is being proposed, and to what extent
the speaker is entitled to the proposed task.
The imagined Africa of the West: a critical perspective on Western imaginations of Africa
Authors: Larsen Rune , Jensen Stig 
Published: October 2019

SUMMARY
This debate piece discusses how exceptionalised images of Africa are reproduced in contemporary Western discourse and imagination, and argues that these exceptionalised depictions of Africa enable Western consciousness to escape a confrontation with its own dysfunctionalities, hereby projecting all the excremental features characterising human existence on to its African Other. This is interpreted as a way for Western subjects to alter themselves into a position of idealised and imagined advanced civilisation – thus legitimising contemporary acts of neo-colonial exploitation in Africa.
“Despite being an athlete, I am also a human‐being”: Male elite gymnasts’ reflections on food and body image
Authors: Pinto Ana Jéssica , Dolan Eimear , Baldissera Giovana , Gonçalves Lívia de Souza , Jardim Felipe Gregório de Araújo , Mazzolani Bruna Caruso , Smaira Fabiana Infante , Sato Priscila de Morais , Scagliusi Fernanda Baeza , Gualano Bruno 
Published: October 2019

ABSTRACTOur aim was to investigate the prevalence of symptoms related to eating disorders, disordered eating and body image perception, and attitudes toward eating in a group of elite male artistic gymnastics. Seventeen athletes took part in this quali‐quantitative, cross‐sectional study. Presence of eating disorders symptoms, and body image perception and satisfaction were assessed using validated questionnaires. Focus groups were held to discuss their attitudes toward eating and body image perception in more detail. Little to no evidence of symptoms consistent with eating disorders was observed, and this was supported by the qualitative data. However, some concerning practices and attitudes were described. Negative emotional eating cycles appeared prevalent (e.g. feelings of anger, stress and anxiety creating a desire to eat “junk foods”, followed by guilt and regret). Body image perception and attitudes toward body weight's influence on performance varied widely. Some athletes expressed a desire to lose weight and believed that this would positively impact their performance, while others believed weight to be irrelevant and focused on feeling strong and vital. Athletes believed their female counterparts experienced far greater pressure to maintain low body weight and described some very concerning practices. We conclude that eating disorders and disordered eating did not appear to be prevalent among these elite male artistic gymnastics. However, some concerning attitudes and practices were observed and should be addressed with nutritional support programmes encompassing psychological and behavioural aspects of eating. These programmes should be extended to support staff and significant others, in addition to athletes.
Model Predictions of Charged-Particle Azimuthal Distributions and Forward-Backward Correlations in pp Interactions at

s=900

GeV*
Authors: Khan R. , Ajaz M. , Ali Y. , Younis H. , Khan G. , Wazir Z. , Zaman A. , Khan A. 
Published: October 2019

Abstract
We report inelastic interactions of protons at the center of mass energy

s

=
900

GeV, by using different event generators to study the forward-backward (FB) correlation in summed transverse momentum and multiplicity of produced charged particles. The transverse momentum, pT
≥ 100 MeV, and pseudorapidity, |η| < 2.5, have been employed for both the correlations. The simulation results are compared with the ATLAS experimental data, obtained with the same values of |η| and pT
at

s

=
900

GeV. We also measure the jet and jet-like structure as a function of azimuthal distributions in the events relative to the highest transverse momentum particle. Three overlapping regions of pseudorapidity, |η| < 1.0, |η| < 2.0, and |η| < 2.5 are used with transverse momentum, pT
> 500 MeV. For FB correlations, EPOS, and Sybill2.3c results are in a good agreement with the data as compared to the other models. Similarly, for the azimuthal distribution, EPOS-LHC, DPMJETIII, and Sibyll2.3c show good agreement with the data for full η region. In general, EPOS provides a better description of the data for both the quantities studied in this paper.
Orthonormality of Volkov Solutions and the Sufficient Condition*
Authors: Wang Hao , Zhong Ming , Gan Long-Fei 
Published: October 2019

Abstract
We present a simple demonstration on the orthonormality of Volkov solutions with emphasizing on the sufficient condition to the orthonormality. Properly aligning the external electromagnetic wave along the third-axis, the Volkov solutions are eigenfunctions of the hermitian momentum

p
^

1

,

p
^

2

and the light-cone hamiltonian operators with real eigenvalues, which can lead to a verification of the orthonormality in the context of quantum mechanics when the x
3-integration of the external potential is not singularity as severe as δ(0). The hermiticity of the fermion field four-momentum operators validates the application of the demonstration to the intense field quantum electrodynamic. The proof based on a direct calculation to the inner products of the solutions is recapitulated as well in a general manner without dependence on explicit representation of the Dirac matrices and spinors, which can be conducive to understand the sufficient condition and to the study of the polarized electron production where a convenient representation is selected elaborately to project out the spin-polarization.
Geodesic Structure of a Non-linear Magnetic Charged Black Hole Surrounded by Quintessence*
Authors: Shi Li-Li , Hu Jian-Ping , Zhang Yu , Ma Chen , Duan Peng-Fei 
Published: October 2019

Abstract

This paper aims to investigate the geodesic motion in the spacetime of a non-linear magnetic charged black hole surrounded by quintessence. By varying the Lagrangian corresponding to the metric, the orbital motion equation has been obtained. The effects of the magnetic charge Q, positive normalization factor C, angular momentum b, and energy E on time-like and null geodesic motion are discussed from three aspects: orbital stability, orbital types, and circular orbits. By comparing the effects of the above parameters C, b on the effective potential, it is found that quintessence has an impact on the types and stability of orbits. In addition, for time-like orbital motion, when 3.443113 ≤ b ≤ 6.392 578 (for fixed C = 0.0002, M = 1, Q = 0.7), there are bound orbits, and within this range, the stable circular orbits exist, and the radii of the innermost and outermost stable circular orbit are r = 5.912 654 and r = 56.745 933, respectively. For null orbital motion, the orbital types have only unstable circular orbit which occur at r = 2.951 072 (

E
2

=

E
2
2

=
0.4

), absorb orbits and escape orbits, but no stable circular orbits, and bound orbits.
A Gravitational Wave Background from Primordial Black Hole Lattices in Matter Dominated Era*
Authors: Wang Ke 
Published: October 2019

Abstract

We use the wide-used Einstein Toolkit to solve the Einstein constraints and then simulate the expansion of primordial black hole lattices (PBHLs) with different value of f
PBH
and m
PBH. We find that f
PBH
plays an important role during the evolution of PBHLs. Since the motion of primordial black holes (PBHs) caused by the expansion of PBHLs occurs at speeds close to that of light, we expect the emission of gravitational waves (GWs) during the expansion of PBHLs. We use both analytical estimates and numerical simulations to cross check the production of GWs in expanding PBHLs.
Background Dynamics of Pre-inflationary Scenario in Brans-Dicke Loop Quantum Cosmology*
Authors: Sharma Manabendra , Zhu Tao , Wang Anzhong 
Published: October 2019

Abstract

Recently the background independent nonperturbative quantization has been extended to various theories of gravity and the corresponding quantum effective cosmology has been derived, which provides us with necessary avenue to explore the pre-inflationary dynamics. Brans-Dicke (BD) loop quantum cosmology (LQC) is one of such theories whose effective background dynamics is considered in this article. Starting with a quantum bounce, we explore the pre-inflationary dynamics of a universe sourced by a scalar field with the Starobinsky potential in BD-LQC. Our study is based on the idea that though Einstein’s and Jordan’s frames are classically equivalent up to a conformal transformation in BD theory, this is no longer true after quantization. Taking the Jordan frame as the physical one we explore in detail the bouncing scenario which is followed by a phase of a slow roll inflation. The three phases of the evolution of the universe, namely, bouncing, transition from quantum bounce to classical universe, and the slow roll inflation, are noted for an initially kinetic energy dominated bounce. In addition, to be consistent with observations, we also identify the allowed phase space of initial conditions that would produce at least 60 e-folds of expansion during the slow roll inflation.
Superstatistics of Modified Rosen-Morse Potential with Dirac Delta and Uniform Distributions
Authors: Okorie U. S. , Ikot A. N. , Rampho G. J. , Sever R. 
Published: October 2019

Abstract

We discuss the thermodynamic properties of a modified Rosen-Morse potential using the q-deformed superstatistics approaches. We obtain the partition function with the help of the generalized Boltzmann factor from the modified Dirac delta distribution and uniform distribution. Other thermodynamic function is obtained for the superstatistics of the two distributions considered. We also discuss our results graphically and obtain the ordinary statistical quantities when the deformation parameter tends to zero.
Mapping Between Charge-Dyon and Position-Dependent Mass Systems*
Authors: de Jesus Anderson L. , Schmidt Alexandre G. M. 
Published: October 2019

Abstract

The primary purpose of this work is to reproduce the scenario composed of a charge-dyon system utilizing position-dependent effective mass (PDM) background in the non-relativistic and in the relativistic regimes. In the non-relativistic case we substitute the exact charge-dyon eigenfunction into PDM Schrödinger equation, in the Zhu-Kroemer parametrization, and then solve it for the mass distribution considering M = M(r). Analogously, in the relativistic case we study the Klein-Gordon equation for a position-dependent mass, and in this case, we are able to analytically solve the equation for M = M(r,θ).