bluuebunny/crossref_metadata_2025_split huggingface dataset:
On the geometric interpretation of quaternions by cones
Authors: Scheglov Georgiy 
Published: January 2023

The geometric interpretation of quaternions is considered. The visualization complexity of quaternions is due to the fact that these objects have four independent parameters. A literature analysis shows that the problem of geometric interpretation of quaternions has not been completely solved to date.
The first section provides general provisions on quaternions and the necessary notations. The second section describes the classical geometric interpretation of quaternions by arcs on a unit sphere. The third section describes a new geometric interpretation and its application to the problem of a vector finite rotation.
The geometric interpretation of the quaternion as the surface of a right circular cone is presented. This representation allow demonstrating it as a holistic object in which the scalar and vector parts are interconnected, taking into account their modules and signs.
For the considered normalized quaternion, it is easy to understanding an important entity, the quaternion versor: in general, it is a cone, which in the limiting case of a pure scalar quaternion transform into a sphere, and in the limiting case of a pure vector quaternion transform into an ordinary vector. This distinctive feature of the proposed geometric interpretation makes it possible, even when projected onto a plane, to clearly distinguish visualization of the quaternions with a nonzero scalar part from pure vector quaternions, which is difficult to do in the other known interpretations. The representation of quaternions by cones clearly demonstrates the need for a double quaternion product, when the vector is rotated around an arbitrary axis.
Images of quaternions as cones, spheres and vectors can be useful in the study of quaternion algebra, which is currently finding increasing use in engineering.
Self-design of arbitrary polarization-control waveplates via deep neural networks
Authors: Liu Zhengchang , Dang Zhibo , Liu Zhixin , Li Yu , He Xiao , Dai Yuchen , Chen Yuxiang , Peng Pu , Fang Zheyu 
Published: January 2023

The manipulation of polarization states beyond the optical limit presents advantages in various applications. Considerable progress has been made in the design of meta-waveplates for on-demand polarization transformation, realized by numerical simulations and parameter sweep methodologies. However, due to the limited freedom in these classical strategies, particular challenges arise from the emerging requirement for multiplex optical devices and multidimensional manipulation of light, which urge for a large number of different nanostructures with great polarization control capability. Here, we demonstrate a set of self-designed arbitrary wave plates with a high polarization conversion efficiency. We combine Bayesian optimization and deep neural networks to design perfect half- and quarter-waveplates based on metallic nanostructures, which experimentally demonstrate excellent polarization control functionalities with the conversion ratios of 85% and 90%. More broadly, we develop a comprehensive wave plate database consisting of various metallic nanostructures with high polarization conversion efficiency, accompanying a flexible tuning of phase shifts (0–2π) and group delays (0–10 fs), and construct an achromatic metalens based on this database. Owing to the versatility and excellent performance, our self-designed wave plates can promote the performance of multiplexed broadband metasurfaces and find potential applications in compact optical devices and polarization division multiplexing optical communications.
Evaluation of a stepped, fixed-height magnification marker stand for use with a 100-mm marker in implant sizing prediction in 52 total hip replacement procedures in dogs
Authors: Siemon Heather K. , Liska William D. , Israel Sarah K. 
Published: January 2023

ObjectiveTo describe the use of a 100-millimeter marker placed on a stepped, fixed-height magnification marker stand to measure radiographic magnification on accuracy of implant size prediction when used for canine total hip replacement (THR) implant size selection.Study designRetrospective study.AnimalsFifty-two hips in 45 dogs.MethodsThis study evaluated 52 consecutive canine total hip replacement surgery pre-planning procedures involving 45 dogs with 7 undergoing staged bilateral THRs. Data collected included demographic information, measured radiographic magnification for magnification recalibration, implant size prediction of the cups (52) and the stems (52) based on digital templates superimposed on digital radiographs, and the actual implant sizes used during surgery.ResultsUse of the magnification marker stand (MMS) and template application system resulted in an accurate prediction of implant size of 98/104 implants (94.2%) implants.ConclusionA 100-mm marker placed on a magnification marker stand was a viable method to measure and recalibrate for magnification on digital radiographs during the template process to predict the THR implant sizes that should be available when the surgery begins.Clinical significanceThis stepped calibration marker stand is helpful in determination of an accurate preoperative THR implant size prediction, lowering implant stock thresholds, operating time, and associated complications. Additionally, the radiographic documentation of the marker’s step height allows for indefinite confirmation of the magnification marker height used and for accurate repeatability for all follow-up imaging examinations and contralateral procedure planning.
Role and mechanism of fruit waste polyphenols in diabetes management
Authors: Malik Faiqa , Iqbal Aqsa , Zia Sabika , Ranjha Muhammad Modassar Ali Nawaz , Khalid Waseem , Nadeem Muhammad , Selim Samy , Hadidi Milad , Moreno Andres , Manzoor Muhammad Faisal , Kowalczewski Przemysław Łukasz , Aadil Rana Muhammad 
Published: January 2023

Abstract
Among various diseases in humans, diabetes is one of the most complicated disorders resulting either from the malfunctioning of β cells, causing a poor discharge of insulin from them, or poor functioning of the liberated insulin. A wide array of chemical compounds so-called secondary metabolites are present in plants. These phytochemicals are produced as by-products of metabolism and play a key role in plant protection. However, in humans, they offer several beneficial functions. Polyphenols are an important class of phytochemicals and apart from fruits, they are also found in their major wastes mainly including the peel, pomace, and seed. The current review is aimed to focus on the potential sources, distribution, and extraction/isolation of polyphenols from major fruit wastes along with highlighting their medicinal and therapeutic benefits, especially in the management of diabetes.
Long-term state-driven atmospheric corrosion prediction of carbon steel in different corrosivity categories considering environmental effects
Authors: Ji Ziguang , Ma Xiaobing , Cai Yikun , Yang Li , Zhou Kun 
Published: January 2023

Abstract
This study investigates an environment-centered, state-driven corrosion prognosis framework to predict the long-term atmospheric corrosion loss of metal materials, and this paper takes carbon steel as an example to show the establishment process of the framework. Unlike traditional power-linear prediction models that seldomly consider environmental impacts, the proposed model quantitatively establishes the correlations between corrosion loss and dynamic atmospheric environmental factors. A comprehensive power-linear function model integrating multiple atmospheric environmental factors is constructed, following the corrosion kinetics robustness. Under the proposed framework, the steady-state start time is evaluated, followed by the long-term corrosion loss prediction under different corrosivity categories and test sites. The applicability is justified via a case study of long-term field exposure tests of metal materials in China, as well as the experimental results of the ISO CORRAG program. By comparing with the traditional power model and ISO model, the experimental results demonstrate the capability and effectiveness of the proposed prognosis methodology in acquiring accurate corrosion state information and corrosion loss prediction results with less input corrosion information.
EU Taxonomy and ECB Monetary Policy: Moving Towards Centrally-Directed Green Capital Allocation?
Authors: Schnabl Gunther 
Published: January 2023

Abstract
Prominent ECB representatives have stressed the goal of the ECB to green its monetary policy, inter alia by moving from market neutrality to (green) market efficiency as guiding principle of monetary policy making. The paper explores how the EU taxonomy could become the benchmark for a monetary policy of the ECB, which influences the credit allocation of commercial banks, with a negative impact on allocation efficiency and growth in the European Union.
Multi-photon polymerization using upconversion nanoparticles for tunable feature-size printing
Authors: Zhang Qianyi , Boniface Antoine , Parashar Virendra K. , Gijs Martin A. M. , Moser Christophe 
Published: January 2023

Abstract
The recent development of light-based 3D printing technologies has marked a turning point in additive manufacturing. Through photopolymerization, liquid resins can be solidified into complex objects. Usually, the polymerization is triggered by exciting a photoinitiator with ultraviolet (UV) or blue light. In two-photon printing (TPP), the excitation is done through the non-linear absorption of two photons; it enables printing 100-nm voxels but requires expensive femtosecond lasers which strongly limit their broad dissemination. Upconversion nanoparticles (UCNPs) have recently been proposed as an alternative to TPP for photopolymerization but using continuous-wave lasers. UCNPs convert near-infrared (NIR) into visible/UV light to initiate the polymerization locally as in TPP. Here we provide a study of this multi-photon mechanism and demonstrate how the non-linearity impacts the printing process. In particular, we report on the possibility of fine-tuning the size of the printed voxel by adjusting the NIR excitation intensity. Using gelatin-based hydrogel, we are able to vary the transverse voxel size from 1.3 to 2.8 μm and the axial size from 7.7 to 59 μm by adjusting the NIR power without changing the degree of polymerization. This work opens up new opportunities to construct 3D structures with micrometer feature size by direct laser writing with continuous wave inexpensive light sources.
Mechanical modification of RAFT-based living polymer networks by photo-growth with crosslinker
Authors: Anderson Bainbridge Chris William , Hye Lee Chloe Eun , Broderick Neil , Jin Jianyong 
Published: January 2023

Abstract
In this work we present a study into the usage of crosslinker growth of Reversible addition-fragmentation chain-transfer polymerization (RAFT)-based Living Polymer Networks (LPNs) for the purpose of mechanical strengthening. Previous work with LPNs has thoroughly covered growth with monomers for various goals, and has touched on using a small amount of crosslinker during growth to retain mechanical strength after growth. Herein, we demonstrate growth with both purely crosslinker and purely monomer for the sake of comparison. We also show this across both symmetries of RAFT agent to see how their different growth behaviors affect the results. The asymmetric RAFT underwent a mesh-filling process during growth which resulted in both crosslinker and monomer strengthening the parent network to a similar degree. However, with the symmetric RAFT agent we saw that the crosslinker and monomer growth caused opposite effects due to their impact on the average crosslinking density; while monomer growth lowered it, growth with crosslinker increased it and strengthened the gel accordingly.
Grundlagen der Gasfeuchte Teil 2 (Kenngrößen der Gasfeuchte)
Authors: Mitter Helmut 
Published: January 2023

ZusammenfassungDie Gasfeuchte wird in der messtechnischen Praxis je nach Anwendungsfall durch eine Reihe unterschiedlicher Kenngröen beschrieben. Dabei ist die Nomenklatur je nach Fachgebiet oft nicht einheitlich, was manchmal zu Missverständnissen führt. All diese Kenngröen haben ihre Berechtigung und können jeweils ineinander umgerechnet werden, wobei meist noch der jeweilige Gaszustand (Druck und Temperatur) eine Rolle spielt. Basierend auf dem Sättigungsverhalten von Wasser in einem Trägergas (Grundlagen der Gasfeuchte Teil1) werden die wichtigsten Kenngröen der Gasfeuchte definiert und hergeleitet. Dabei wird immer vom Stoffmengenanteil des Wassers im feuchten Gas ausgegangen, sodass im Allgemeinen alle Messgröen auch bei realem Zustandsverhalten des Gases korrekt sind. Für einige der Kenngröen, speziell der relativen Feuchte, werden manchmal verwendete alternative Definitionen angegeben und diskutiert.
Development of a pediatric differentiated thyroid carcinoma registry within the EuRRECa project: rationale and protocol
Authors: Clement S C , Visser W E , Lebbink C A , Albano D , Claahsen-van der Grinten H L , Czarniecka A , Dias R P , Dierselhuis M P , Dzivite-Krisane I , Elisei R , Garcia-Burillo A , Izatt L , Kanaka-Gantenbein C , Krude H , Lamartina L , Lorenz K , Luster M , Navardauskaitė R , Negre Busó M , Newbold K , Peeters R P , Pellegriti G , Piccardo A , Priego A L , Redlich A , de Sanctis L , Sobrinho-Simões M , van Trotsenburg A S P , Verburg F A , Vriens M , Links T P , Ahmed S F , van Santen H M 
Published: January 2023

Background
Although differentiated thyroid carcinoma (DTC) is the most frequent endocrine pediatric cancer, it is rare in childhood and adolescence. While tumor persistence and recurrence are not uncommon, mortality remains extremely low. Complications of treatment are however reported in up to 48% of the survivors. Due to the rarity of the disease, current treatment guidelines are predominantly based on the results of small observational retrospective studies and extrapolations from results in adult patients. In order to develop more personalized treatment and follow-up strategies (aiming to reduce complication rates), there is an unmet need for uniform international prospective data collection and clinical trials.

Methods and analysis
The European pediatric thyroid carcinoma registry aims to collect clinical data for all patients ≤18 years of age with a confirmed diagnosis of DTC who have been diagnosed, assessed, or treated at a participating site. This registry will be a component of the wider European Registries for Rare Endocrine Conditions project which has close links to Endo-ERN, the European Reference Network for Rare Endocrine Conditions. A multidisciplinary expert working group was formed to develop a minimal dataset comprising information regarding demographic data, diagnosis, treatment, and outcome. We constructed an umbrella-type registry, with a detailed basic dataset. In the future, this may provide the opportunity for research teams to integrate clinical research questions.

Ethics and dissemination
Written informed consent will be obtained from all participants and/or their parents/guardians. Summaries and descriptive analyses of the registry will be disseminated via conference presentations and peer-reviewed publications.
Cerebral vasospasm following subarachnoid hemorrhage: a rare complication after transsphenoidal surgery for pituitary macroadenoma
Authors: Elias Paula Condé Lamparelli , Volpon Marcelo , Azevedo Giovana de Gobbi , Machado Helio , Gonçalves Gabriel Henrique Marques , Carlos Santos Antonio , Mermejo Livia M , de Castro Margaret , Moreira Ayrton C 
Published: January 2023

Summary
Postoperative (PO) complications after transsphenoidal surgery (TSS) are rare when performed in pituitary referral centers. Partial hypopituitarism is more frequent and somewhat expected. Meningitis, cerebrospinal fluid leaks, and visual deficits are unusual. Cerebrovascular complications, including cerebral vasospasm are rare, usually under-appreciated and not mentioned to the patient prior to the surgery. This is a report of a 51-year-old male with a non-functioning pituitary macroadenoma presenting with partial hypopituitarism and visual field loss. The patient was submitted to an uneventful TSS. On the first PO day, he developed a left palpebral ptosis with unequal pupils and impaired consciousness (12 points on Glasgow Coma Scale). CT scan revealed a perimesencephalic subarachnoid hemorrhage (SAH) grade 1 according to the modified Fisher scale. High-dose dexamethasone (16 mg/day) was initiated and the patient became more alert (Glasgow 14). On the fifth PO day, due to progression of the neurological deficits (left III, IV, and VI cranial nerves palsy, ataxia, dysdiadochokinesia, right dysmetria, and dysarthria), a magnetic resonance angiography was obtained and revealed a recent mesencephalic infarct without evident vasospasm. Nevertheless, nimodipine 60 mg 4/4 h was initiated. No improvement was seen after 3 days of treatment. The patient was discharged and put on rehabilitation, returning to normal gait and balance after 7 months. This, therefore, is a case of an unexpected mesencephalic infarct probably due to vasospasm induced by minor SAH. Although exceptionally rare, informing the patient about this event prior to TSS is important due to its significant neurological impact. More data are needed considering preventive treatment with nimodipine as soon as SAH is detected after TSS and whether it would improve neurological outcomes.

Learning points

Whenever neurological deficits arise after transsphenoidal surgery (TSS), systemic infection, meningitis, electrolyte imbalance, and evident hemorrhage must be promptly investigated.

Although rare, cerebral vasospasm (CVS) after TSS is associated with high morbidity and high mortality rates.

Vigilance for vasospasm is necessary for patients undergoing TSS for pituitary adenoma, especially those with significant suprasellar extension.

Informing this event to the patient prior to TSS is essential due to its significant morbidity and mortality.

Post-TSS subarachnoid hemorrhage and hemiparesis may be important clues indicating CVS and infarction.

There is limited evidence in the literature regarding post-TSS CVS surveillance and treatment strategies which could have an impact on clinical decisions.
Az adhézió stabilizálódásának meghatározása a korai posztoperatív időszakban patkány modellen
Authors: Szabó Györgyi , Fehér Daniella , Juhos Krisztina , Gamal Eldin Mohamed , Arató Gabriella , Csukás Domokos , Sándor József , Ferencz Andrea 
Published: January 2023

Összefoglaló.
Bevezetés: Az adhézióképződés egy komplex eseménysor, amely
olyan sejtes és molekuláris folyamatok következménye, ahol a normál esettől
eltérően az adhéziógenezist támogató történések dominálnak az adhéziólízissel
szemben. Kiváltásában szerepet játszik többek között a szöveti sérülés, vérzés,
szöveti deszikkáció, illetve a gyulladásos folyamatok. Mivel az adhézió
jelenléte számos negatív szövődménnyel járhat, elsődleges cél a kialakulásának
megakadályozása. Számos prevenciós célpontja van a folyamatnak, azonban a
terápia sok esetben csak közvetlenül a beavatkozás után történik.
A jelen tanulmányban egy adhéziós kísérleti patkány modellt mutatunk be, ahol az
adhézió stabilizálódási időszakának megismerése a cél. Minden állaton ugyanaz a
műtéti beavatkozás történt, szöveti sérülés, kisebb vérzés és szöveti
deszikkáció előidézésével, különbség csak a reoperációk, mintavételek
időpontjában volt. 1–7. posztoperatív napon makroszkóposan és szövettanilag
értékeltük a kialakult adhéziók típusát, az összetapadó szöveteket, az adhézió
stabilitását.
Megállapítottuk, hogy a stabilizálódás egy több napig tartó folyamat, a 4.
posztoperatív napig az instabil és mérsékelten stabil adhéziók domináltak. Ennek
ismerete lehetővé teszi a terápiás ablak kibővítését, a korai posztoperatív
időszakban célzottan, a legmegfelelőbb időszakot kiválasztva, esetleg a
kezelések kombinálásával még hatékonyabbá tehető az adhézióprevenció.
Summary.
Introduction: Adhesion formation is a complex series of events
that results from cellular and molecular processes where, in contrast to the
normal case, events that support adhesion genesis dominate over adhesion lysis.
Tissue injury, haemorrhage, tissue desiccation and inflammatory processes, among
others, play a role in its induction. Since the presence of adhesions can be
associated with a number of negative complications, the primary aim is to
prevent their development. There are several preventive targets for the process,
but in many cases therapy is only provided immediately after the procedure.
In this study, we present an experimental rat model of adhesion, where the aim is
to understand the stabilization period of adhesion. All animals underwent the
same surgical procedure, inducing tissue injury, minor haemorrhage and tissue
desiccation, differing only in the timing of reoperations and sampling. On
postoperative days 1–7, we assessed macroscopically and histopathologically the
type of adhesions formed, the adhesive tissue, the stability of the
adhesion.
We found that stabilization was a process lasting several days, with unstable and
moderately stable adhesions predominating by postoperative day 4. Knowing this
allows to broaden the therapeutic window, targeting the most appropriate period
in the early postoperative period, possibly combining treatments, to make
adhesion prevention even more effective.
Verdad histórica entre medio decir y neurosis obsesiva
Authors: Couto Richard , Alberti Sonia 
Published: January 2023

A partir del estudio del sintagma "verdad histórica" en Freud en relación con el concepto de realidad psíquica y la estructura del mito, y de las incidencias en la obra de Freud y en otros textos, se examina dicho sintagma en las vertientes tantode la verdad como de la idea de una constelación tal como aparece en Freud, Lacan y Goethe. Seguidamente, guiados por los mismos autores, se articula con la clínica de la neurosis obsesiva. De donde se infirió una hipótesis: una relación posible entre el sintagma que viene del texto freudiano y fue retomado por Lacan en el campo de la palabra y del lenguaje y lo que más tarde Lacan articularía con el campo del goce. El texto tiende, finalmente, al desarrollo de esa hipótesis y termina articulando verdad histórica y análisis.
Usos del nudo. Efectos de nominación en el autismo
Authors: Piaggi Marcela Beatriz 
Published: January 2023

Este texto forma parte del estado de trabajo de la tesis de maestría en Psicoanálisis que actualmente estamos desarrollando en la Facultad de Psicología de la Universidad de Buenos Aires.
Uno de los aportes más interesantes será interrogarnos sobre el uso de los nudos en la clínica del autismo. Tomaremos como eje de la enseñanza de Lacan los años 1974-1976, donde aborda el nudo borromeo en el del pasaje del nudo triádico al tetrádico con la función de nominación, punto de partida para llegar con la lógica de los nudos al autismo caracterizado por la forclusión del agujero. Será central desarrollar el concepto de nominación como efectos para comprender el planteo del escrito.