bluuebunny/crossref_metadata_2025_split huggingface dataset:
Applikation einer Teilbogenmechanik zur Einordnung palatinal
verlagerter oberer Eckzähne
Authors: Pauls Alexander 
Published: May 2023

ZusammenfassungDurch die Anwendung von Teilbogenmechaniken zur Einordnung verlagerter
Eckzähne kann nicht nur eine genaue Definition der Kräfte und
der Zugrichtung erfolgen, sondern zusätzlich die Anwendungszeit
festsitzender Multibracketapparaturen deutlich reduziert werden. Die hier
demonstrierte Befestigungsmethode für palatinale Teilbogenmechaniken
stellt eine einfach zu inserierende, zeit- und kostensparende Methode dar,
sofern Bänder mit Hooks an den Palatinalschlössern verwendet
werden.
Prevention and Therapy of Preterm Birth. Guideline of the DGGG, OEGGG and SGGG (S2k Level, AWMF Registry Number 015/025, September 2022) – Part 2 with Recommendations
on the Tertiary Prevention of Preterm Birth and on the Management of Preterm Premature Rupture of Membranes
Authors: Berger Richard , Abele Harald , Bahlmann Franz , Doubek Klaus , Felderhoff-Müser Ursula , Fluhr Herbert , Garnier Yves , Grylka-Baeschlin Susanne , Hayward Aurelia , Helmer Hanns , Herting Egbert , Hoopmann Markus , Hösli Irene , Hoyme Udo , Kunze Mirjam , Kuon Ruben-H. , Kyvernitakis Ioannis , Lütje Wolf , Mader Silke , Maul Holger , Mendling Werner , Mitschdörfer Barbara , Nothacker Monika , Olbertz Dirk , Ramsell Andrea , Rath Werner , Roll Claudia , Schlembach Dietmar , Schleußner Ekkehard , Schütz Florian , Seifert-Klauss Vanadin , Stubert Johannes , Surbek Daniel 
Published: May 2023

Abstract
Aim The revision of this guideline was coordinated by the German Society for Gynecology and Obstetrics (DGGG), the Austrian Society for Gynecology and Obstetrics (OEGGG) and the
Swiss Society for Gynecology and Obstetrics (SGGG). The aim of the guideline is to improve the prediction, prevention and management of preterm birth based on evidence from the current
literature, the experience of members of the guidelines commission, and the viewpoint of self-help organizations.
Methods The members of the contributing professional societies and organizations developed recommendations and statements based on international literature. The recommendations and
statements were presented and adopted using a formal process (structured consensus conferences with neutral moderation, written Delphi vote).
Recommendations Part 2 of this short version of the guideline presents statements and recommendations on the tertiary prevention of preterm birth and the management of preterm
premature rupture of membranes.
Early Outcomes in Targeted Muscle Reinnervation for Traumatic Amputations
Authors: Denton Stephen R. , McBride Conor , Hammond Alexander P. , LoGiudice Anthony J. 
Published: May 2023

Abstract
Background Traumatic amputees commonly experience residual limb pain (RLP) and phantom limb pain (PLP) which present major barriers to rehabilitation. An evolving treatment, targeted muscle reinnervation (TMR), shows promise in reducing these symptoms. While initial data are encouraging, existing studies are low power, and more research is needed to assess the long-term outcomes of TMR. We present the results of self-reported outcome surveys distributed to major-limb amputees more than 1 year post-TMR which were compared with similar data from a landmark randomized control trial for context.
Methods Data was obtained from 17 adult traumatic amputees who were more than 1 year post-TMR using a numerical rating scale and the Patient-Reported Outcomes Measurement Information System survey tool. Results were compared with a 2019 randomized control trial by Dumanian et al which assessed TMR versus standard care (SC) after major limb amputation and demonstrated improvement in pain scores 1 year post-TMR.
Results There was a statistically significant reduction in this cohort of TMR amputees' RLP worst pain scores relative to the comparison study's SC amputees (without TMR). In general, there was no significant difference in outcomes between TMR cohorts. However, PLP worst pain was significantly higher in this cohort relative to the comparison study's TMR group.
Conclusion These findings support the use of TMR for reducing RLP in traumatic amputees. Relative to a similar group treated without TMR in the comparison study, this cohort's RLP was significantly improved. Future studies should aim to recruit more amputees to allow for analysis of functional outcomes, especially in upper limb amputees.
DIEP Flap Transplantation in Monozygotic Twins for Breast Reconstruction: A Case Report and Literature Review
Authors: Ozturk Cemile Nurdan , Manisundaram Arvind D. , Rivera Mariangela , Ozturk Can , Moon Wong 
Published: May 2023

Abstract
Background Composite tissue allotransplants are performed for various defects when local, or distant reconstructive options are limited. Though this type of transplant replaces similar tissue, it is complicated by immunosuppression. This limitation may be avoided in monozygotic twins since they share identical genetic code. Free soft tissue transplantation across identical twins has been reported for breast, scalp, and thoracic reconstruction when autologous tissues were insufficient. We present a case of a successful deep inferior epigastric artery perforator (DIEP) flap transplantation in monozygotic twins.
Methods The recipient twin was a patient with history of breast cancer and failed prosthetic reconstruction. She desired autologous reconstruction with a DIEP flap but had insufficient donor tissue. She refused alternative sites; however, she had an identical twin willing to donate her excess abdominal tissue. The twins underwent deoxyribonucleic acid testing, human leukocyte antigen/blood type testing, and screening for communicable diseases.
Results The twins were found to have greater than 99.99% probability of being monozygotic twins. A bipedicled conjoined DIEP was harvested from donor twin and transplanted to recipient twin. Immunosuppressive regimen was not utilized. Patients healed uneventfully and are currently 5 years postop without long-term complications.
Conclusion Isogeneic flap transplant is a viable option to consider when autologous tissues are restricted, and monozygotic twins are present. Appropriate counseling of twins is critical for a successful and satisfactory outcome.
Homoeopathic Treatment of Chocolate Cyst: A Case Report
Authors: Mahajan Priyanka S. , Tayade Kanchan R. 
Published: May 2023

AbstractChocolate cysts of the ovary come under the subgroup of endometriosis. The prevalence of chocolate cyst in the reproductive age group is 8% and in the postmenopausal age group, 18%. Its defining symptoms include dyspareunia, pelvic pain, irregular periods and menstrual pain. A cyst size of more than 4 cm indicates the need for surgical treatment. The typical therapies for this condition include hormone therapy and operations like hysterectomy. In this case report, we have shown a positive curative role of homeopathic medicine in the management of chocolate cyst of the ovary. A 31-year-old woman complaining of weakness came to the OPD, painful irregular menses with large clots and stitching pain in the right inguinal region. She was diagnosed with chocolate cyst of the ovary. She had been on hormonal therapy for a year without any relief, and the USG report showed that the cyst had grown bigger. The patient was treated successfully with individualised homoeopathic medicine Lachesis in centesimal potency, which showed significant improvement in patient – and post-treatment outcome was corroborated with follow-up and laboratory investigation which showed complete regression of cyst. Causal attribution for changes in the condition of patient after homoeopathic medication was assessed by modified Naranjo criteria.
Imaging Recommendations for Diagnosis, Staging, and Management of Peritoneal Malignancies
Authors: Choudhari Amit Kumar , Chandramohan Anuradha , Shetty Nitin , Kulkarni Suyash , Shrikhande Shailesh , Saklani Avanish , Mittal Rohin , Deodhar Kedar , Yadav Subhash , Engineer Reena , Ostwal Vikas , Patil Prachi 
Published: May 2023

AbstractPeritoneum is a serosal membrane lining the solid viscera and the hollow viscus of the abdomen and is made of a single layer of mesothelial cells. The most common primaries that spread to the peritoneum include gastrointestinal, ovarian, colorectal, and peritoneal metastases can be seen at some point during the disease course in 15 to 43%, 60 to 70% and 15 to 20% of patients, respectively. Other malignancies involving the peritoneum such as primary peritoneal carcinoma, peritoneal mesothelioma, peritoneal lymphomatosis, pseudomyxoma peritonei from low-grade appendiceal mucinous neoplasm, are far less common. The review strives to provide a framework for diagnosis and management of the disease.
Transjugular Intrahepatic Portosystemic Shunt Reductions
Authors: Joseph Arthur , Lopera Jorge 
Published: May 2023

AbstractTransjugular intrahepatic portosystemic shunts (TIPS) are effective in reducing the portosystemic gradient and relieving complications of portal hypertension. Despite optimal patient selection, TIPS placement can be limited due to worsening hepatic encephalopathy and liver failure. In these cases, TIPS reduction may be necessary. A brief history of TIPS reduction and techniques for reduction are reviewed.
Portal Vein Thrombosis: Introduction to Imaging and Etiology
Authors: Gueyikian Sebouh , Ferral Hector 
Published: May 2023

AbstractPortal vein thrombosis (PVT) is a complex medical condition that presents differently depending on the etiology. Appropriate imaging is necessary to determine the extent of clot, as well as its chronicity. While determining the characteristics of the PVT, imaging may also reveal the underlying cause of PVT. The purpose of this article is to describe the most common imaging modalities used in the evaluation of PVT, and to describe the findings of PVT.
Endovascular Alternatives to Transhepatic Shunt Creation
Authors: Sinha Ishan , Goldman Daryl T. , Patel Rahul S. , Nowakowski Francis S. 
Published: May 2023

AbstractPortomesenteric decompression is often necessary to treat patients with refractory symptoms of portal hypertension. When transjugular or direct intrahepatic portosystemic shunt creation is not feasible or is inadequate, surgical portosystemic shunt creation is considered, which carries significant morbidity and mortality in these high-risk patients. Surgery is further complicated in patients with portomesenteric thrombosis who require concurrent thrombectomy and long-term anticoagulation. In this article, we outline the technique for performing advanced endovascular alternatives to intrahepatic portosystemic shunt creation including mesocaval and splenorenal shunting. We will also discuss some of the clinical considerations for treating these patients with symptomatic portal hypertension and portomesenteric thrombosis.
Bias against parents in science hits women harder
Authors: Staniscuaski Fernanda , Machado Arthur V. , Soletti Rossana C. , Reichert Fernanda , Zandonà Eugenia , Mello-Carpes Pamela B. , Infanger Camila , Ludwig Zelia M. C. , de Oliveira Leticia 
Published: May 2023

AbstractWorldwide, parenthood remains a major driver for the reduced participation of women in the job market, where discrimination stems from people’s biases against mothers, based on stereotypes and misconceptions surrounding the vision of motherhood in our society. In academia, parenthood may be perceived as negatively affecting scientists’ commitment and dedication, especially women’s. We conducted a survey amongst Brazilian scientists and found that mothers self-reported a higher prevalence of negative bias in their workplace when compared to fathers. The perception of a negative bias was influenced by gender and career status, but not by race, scientific field or number of children. Regarding intersections, mothers with less than 15 years of hiring reported having suffered a higher rate of negative bias against themselves. We discuss implications of these results and suggest how this negative bias should be addressed in order to promote an equitable environment that does not harm women in science.
Efficient surface passivation of germanium nanostructures with 1% reflectance
Authors: Fung Tsun Hang , Isometsä Joonas , Lehtiö Juha-Pekka , Pasanen Toni P , Liu Hanchen , Leiviskä Oskari , Laukkanen Pekka , Savin Hele , Vähänissi Ville 
Published: May 2023

Abstract
Germanium (Ge) is a vital element for applications that operate in near-infrared wavelengths. Recent progress in developing nanostructured Ge surfaces has resulted in >99% absorption in a wide wavelength range (300–1700 nm), promising unprecedented performance for optoelectronic devices. However, excellent optics alone is not enough for most of the devices (e.g. PIN photodiodes and solar cells) but efficient surface passivation is also essential. In this work, we tackle this challenge by applying extensive surface and interface characterization including transmission electron microscopy and x-ray photoelectron spectroscopy, which reveals the limiting factors for surface recombination velocity (SRV) of the nanostructures. With the help of the obtained results, we develop a surface passivation scheme consisting of atomic-layer-deposited aluminum oxide and sequential chemical treatment. We achieve SRV as low as 30 cm s−1 combined with ∼1% reflectance all the way from ultraviolet to NIR. Finally, we discuss the impact of the achieved results on the performance of Ge-based optoelectronic applications, such as photodetectors and thermophotovoltaic cells.
Dust ion acoustic shock and solitary waves in a magnetized multi-component plasma with superthermal electrons
Authors: El-Monier S Y , El-Helbawy A S , Elsayed Moamen M. , Saad M 
Published: May 2023

Abstract
The nonlinear wave propagation in dusty plasmas has received great interest in recent decades due to its significance in interpreting some astrophysical phenomenon. Wave propagation in dust-particle plasmas is likely to differ significantly from that in normal plasmas. Depending on their time scales, several types of acoustic waves propagate in dusty plasmas. The propagation of DIA waves was investigated through a system of multi-component dusty plasma. The study shows the effect of the magnetic field and superthermal parameters on the Sagdeev potential. The Sagdeev potential falls with decreasing ω

ci
values and rising superthermal parameter k values. Bifurcation analysis is taken into our consideration and shown graphically under the two conditions (A > 0 ) and (A < 0). The presented theoretical work is useful in fully understanding disturbances of the electrostatic in space dusty plasmas.
Effects of the intramolecular structural change on the superconducting phase of the TMTTF systems
Authors: Kitamura Naoki 
Published: May 2023

Abstract
The tetramethyltetrathiafulvalene (TMTTF) system is one of the key materials to reveal mechanisms for unconventional superconductivity which is driven by electronic correlation. Recent experimental studies show that only the SbF6 salt, which exhibit the strongest charge order among the PF6 and AsF6 and SbF6 salts have anomalously high superconducting phase transition pressure for the insulating-superconducting phase and superconducting-metallic phase transitions. To investigate the relationship between the superconductivity and the strength of the charge order of these salts, we constructed an extended Hubbard model with the periodic boundary condition that takes into account the site-deformation potential driven by the intramolecular structural change which causes the nonuniform charge order. The superconductivity was examined by the Drude weight and the charge gap obtained by exact diagonalization. It was found that site-deformation potentials driven by the intramolecular conformational change, even small changes, move the insulator-superconductor transition point to higher pressure, i.e. too large transfer integrals. Without the site-deformation potentials, the transfer integral at the transition point is too small as compared with those values deduced from the first-principles calculations at the structures under atmospheric pressure and it is difficult to reproduce the transition.
An investigation into the effects of electric field on the structural and optical properties of L-Cysteine doped KDP crystals
Authors: Mahadik Ashwini , Soni P H , Mithani Amol 
Published: May 2023

Abstract
Nowadays, different methods to grow large-size crystals are gaining more interest compared to traditional crystal growth techniques. Based on the applications, crystals must be modified and for that new crystal growth techniques must be introduced to meet such demands. Potassium Dihydrogen Phosphate (KDP) crystal is a well-known non-linear optical (NLO) crystal which has numerous demands in various fields, for instance, electro-optic devices, lasers, modulators, etc and due to which its habit modification plays a significant role in research and development. A slow evaporation technique was used to grow transparent and good-quality L-Cysteine (1 mol% and 2 mol%) doped KDP crystals; however, the crystals were grown in presence of a constant electric field at room temperature. With powder x-ray Diffraction (XRD) analysis and utilising FullProf Suite software, the crystal structure of the crystal was confirmed. The inclusion of L-Cysteine into KDP lattice was confirmed with fourier transform infrared (FTIR) spectroscopy. Optical transmittance spectra were recorded in the range of 200 and 800 nm. Photoluminescence (PL) studies were conducted in the range of 300–600 nm in order to detect lattice defects and intrinsic impurities. The value of relative second harmonic generation (SHG) efficiency was observed to be enhanced for crystals grown in presence of an electric field.
Two-dimensional extended Hubbard model at half-filling
Authors: Sherman A 
Published: May 2023

Abstract
We consider the extended Hubbard model on a two-dimensional square lattice at half-filling. The model is investigated using the strong coupling diagram technique. We sum infinite series of ladder diagrams allowing for full-scale charge and spin fluctuations and the actual short-range antiferromagnetic order for nonzero temperatures. In agreement with earlier results, we find the first-order phase transition in the charge subsystem occurring at v = v

c
≳ U/4 with v and U the intersite and on-site Coulomb repulsion constants. The transition reveals itself in an abrupt sign change of a sharp maximum in the zero-frequency charge susceptibility at the corner of the Brillouin. States arising at the transition have alternating deviations of electron occupations from the mean value on neighboring sites. Due to fluctuations, these alternating occupation deviations have short-range order. For the considered parameters, such behavior is found for U ≲ 5t with t the hopping constant. For the insulating case U ≳ 6t, in which the transition is not observed, we find a continuous growth of the Mott gap with v. The evolution of the electron density of states with increasing v is also considered.
Evolutionary stability of social interaction rules in collective decision-making
Authors: Sigalou Anna , Mann Richard P 
Published: May 2023

Abstract
Social animals can use the choices made by other members of their groups as cues in decision making. Individuals must balance the private information they receive from their own sensory cues with the social information provided by observing what others have chosen. These two cues can be integrated using decision making rules, which specify the probability to select one or other options based on the quality and quantity of social and non-social information. Previous empirical work has investigated which decision making rules can replicate the observable features of collective decision making, while other theoretical research has derived forms for decision making rules based on normative assumptions about how rational agents should respond to the available information. Here we explore the performance of one commonly used decision making rule in terms of the expected decision accuracy of individuals employing it. We show that parameters of this model which have typically been treated as independent variables in empirical model-fitting studies obey necessary relationships under the assumption that animals are evolutionarily optimised to their environment. We further investigate whether this decision making model is appropriate to all animal groups by testing its evolutionary stability to invasion by alternative strategies that use social information differently, and show that the likely evolutionary equilibrium of these strategies depends sensitively on the precise nature of group identity among the wider population of animals it is embedded within.
A simple cognitive model explains movement decisions in zebrafish while following leaders
Authors: Oscar Lital , Li Liang , Gorbonos Dan , Couzin Iain D , Gov Nir S 
Published: May 2023

Abstract
While moving, animals must frequently make decisions about their future travel direction, whether they are alone or in a group. Here we investigate this process for zebrafish (Danio rerio), which naturally move in cohesive groups. Employing state-of-the-art virtual reality, we study how real fish (RF) follow one or several moving, virtual conspecifics (leaders). These data are used to inform, and test, a model of social response that includes a process of explicit decision-making, whereby the fish can decide which of the virtual conspecifics to follow, or to follow in some average direction. This approach is in contrast with previous models where the direction of motion was based on a continuous computation, such as directional averaging. Building upon a simplified version of this model (Sridhar et al 2021 Proc. Natl Acad. Sci.
118 e2102157118), which was limited to a one-dimensional projection of the fish motion, we present here a model that describes the motion of the RF as it swims freely in two-dimensions. Motivated by experimental observations, the swim speed of the fish in this model uses a burst-and-coast swimming pattern, with the burst frequency being dependent on the distance of the fish from the followed conspecific(s). We demonstrate that this model is able to explain the observed spatial distribution of the RF behind the virtual conspecifics in the experiments, as a function of their average speed and number. In particular, the model naturally explains the observed critical bifurcations for a freely swimming fish, which appear in the spatial distributions whenever the fish makes a decision to follow only one of the virtual conspecifics, instead of following them as an averaged group. This model can provide the foundation for modeling a cohesive shoal of swimming fish, while explicitly describing their directional decision-making process at the individual level.
Quasi-two-body decays
in perturbative QCD*
Authors: Zhao Yan-Chao , Zhang Zhi-Qing , Zhang Zi-Yu , Sun Zhi-Jie , Meng Qiu-Bo 
Published: May 2023

Abstract
In this work, we investigate the quasi-two-body decays

with

using the perturbative QCD (PQCD) approach. The description of final state interactions of the

pair is achieved through the two-meson distribution amplitudes (DAs), which are normalized to the time-like form factor. The PQCD predictions on the branching ratios of the quasi-two-body decays

show an obvious hierarchy:

and

. From the invariant mass

-dependence of the decay spectrum for each channel, one can find that the branching fraction is concentrated in a narrow region around the

pole mass. Thus, one can obtain the branching ratios for the corresponding two-body decays

under the narrow-width approximation. We find that the branching ratios of the decays

are consistent with the previous PQCD calculations within errors. These predictions will be tested in future experiments.