bluuebunny/crossref_metadata_2025_split huggingface dataset:
Persistierende Riechminderung nach COVID-19 – Empfehlungen der Arbeitsgemeinschaft Olfaktologie und Gustologie der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie e. V.
Authors: Hintschich Constantin A. , Wege-Lüssen Antje , Göktas Önder , Stuck Boris A. , Müller Christian A. , Hummel Thomas 
Published: October 2023

ZusammenfassungDer Artikel soll die existierende Literatur zu mit COVID-19 („coronavirus disease 2019“) assoziierten Riechstörungen nicht vollständig aufarbeiten, sondern die für die HNO-ärztliche Praxis relevanten Forschungserkenntnisse zusammenfassen sowie Empfehlungen zur Diagnostik und Therapie bei persistierenden Riechstörungen nach COVID-19 geben.
Mineralogy and mineral chemistry of the ABM replacement-style volcanogenic massive sulfide deposit, Finlayson Lake district, Yukon, Canada
Authors: Denisová Nikola , Piercey Stephen J. , Wälle Markus 
Published: October 2023

AbstractThe ABM deposit is a bimodal-felsic, replacement-style volcanogenic massive sulfide deposit (VMS) that is hosted by back-arc affinity rocks of the Yukon–Tanana terrane in the Finlayson Lake VMS district, Yukon, Canada. Massive sulfide zones occur as stacked and stratabound lenses subparallel to the volcanic stratigraphy, surrounded by pervasive white mica and/or chlorite alteration. Remnant clasts of volcanic rocks and preserved bedding occur locally within the massive sulfide lenses and indicate that mineralization formed through subseafloor replacement of pre-existing strata. Three mineral assemblages occur at the ABM deposit: (1) a pyrite–chalcopyrite–magnetite–pyrrhotite assemblage that is associated with Cu–Bi–Se–Co-enrichment and occurs at the center of the massive sulfide lenses; (2) a pyrite–sphalerite assemblage, which occurs more commonly towards lens margins and is enriched in Zn–Pb–Ag–Au–Hg–As–Sb–Ba; and (3) a minor assemblage comprising chalcopyrite–pyrrhotite–pyrite stringers associated with pervasive chlorite alteration, which occurs mostly at the sulfide lens margins. Petrographic observations of preserved primary, zone refining, and metamorphic textures in combination with in situ geochemistry show that the pyrite–sphalerite assemblage formed at lower temperatures (< 270 °C) than the other two mineral assemblages (~ 270–350 °C), and that mineral chemistry in all mineral assemblages was affected by greenschist facies metamorphism, although the effects are limited to recrystallization, small-scale remobilization (< 1 m) and trace element redistribution.
Berufliche Gefährdungen schwangerer und stillender Ärztinnen und Präparatorinnen in der Rechtsmedizin
Authors: Schwarz Clara-Sophie , Kegel Peter , Küppers Lisa , Ritz-Timme Stefanie , Germerott Tanja , Walz Cleo 
Published: October 2023

Zusammenfassung
Hintergrund
Die Rechtsmedizin ist ein Fachgebiet, in dem schwangere und stillende Frauen bei der Ausübung der beruflichen Tätigkeit gegenüber biologischen, chemischen, physikalischen und psychomentalen Gefährdungen exponiert sein können. Die Erfahrung zeigt, dass eine Beurteilung dieser Gefährdungen häufig Schwierigkeiten bereitet und zudem keine einheitliche Handlungsempfehlung existiert. Ziel der vorliegenden Arbeit ist es, Gefährdungen Schwangerer und Stillender und ihrer Kinder in der forensischen Pathologie, der klinischen Rechtsmedizin und der experimentellen Forschung zu identifizieren und Empfehlungen zum Umgang mit diesen Gefährdungen auszuarbeiten.

Methoden
Die im Berufsalltag von rechtsmedizinisch tätigen Ärztinnen und Präparatorinnen vorkommenden mutterschutzrelevanten Gefährdungen wurden systematisch erfasst und mithilfe der verfügbaren wissenschaftlichen Literatur in einem interdisziplinären Team (Rechtsmedizin, Arbeitsmedizin) beurteilt.

Ergebnisse und Diskussion
Die Übertragung von bakteriellen und viralen Infektionen bei Obduktionen oder körperlichen Untersuchungen kann durch Abstand von Tätigkeiten mit Verletzungspotenzial sowie konsequente Schutzmaßnahmen vermieden werden. Unter Einhaltung des Arbeitsplatzgrenzwerts ist auch der Umgang mit formalinfixiertem Gewebe und ggf. bestimmten anderen Chemikalien grundsätzlich möglich. Das Bewegen schwerer Lasten (regelmäßig > 5 kg), bewegungsarmes langes Stehen (> 4 h täglich) sowie Nachtarbeit darf Schwangeren gemäß Mutterschutzgesetz nicht zugemutet werden.

Schlussfolgerung
Aufgrund der Vielfalt der Tätigkeiten und der möglichen Einwirkungen auf Schwangere/Stillende ist als Basis für die Verfügung von Schutzmaßnahmen bis hin zu einem möglicherweise erforderlichen Beschäftigungsverbot eine strukturierte allgemeine und individuelle Gefährdungsbeurteilung erforderlich. Generelle Tätigkeitsverbote wie ein Obduktions- oder Laborverbot oder ein pauschales Verbot körperlicher Untersuchungen lassen sich aus den gesetzlichen Vorgaben nicht ableiten.
Long-time asymptotics for coagulation equations with injection that do not have stationary solutions
Authors: Cristian Iulia , Ferreira Marina A. , Franco Eugenia , Velázquez Juan J. L. 
Published: October 2023

AbstractIn this paper we study a class of coagulation equations including a source term that injects in the system clusters of size of order one. The coagulation kernel is homogeneous, of homogeneity $$\gamma < 1$$

γ
<
1

, such that K(x, y) is approximately $$x^{\gamma + \lambda } y^{-\lambda }$$

x

γ
+
λ

y

-
λ

, when x is larger than y. We restrict the analysis to the case $$\gamma + 2 \lambda \ge 1 $$

γ
+
2
λ
≥
1

. In this range of exponents, the transport of mass toward infinity is driven by collisions between particles of different sizes. This is in contrast with the case considered in Ferreira et al. (Annales de l’Institut Henri Poincaré C, Analyse Non Linéaire, 2023), where $$\gamma + 2 \lambda <1$$

γ
+
2
λ
<
1

. In that case, the transport of mass toward infinity is due to the collision between particles of comparable sizes. In the case $$\gamma +2\lambda \ge 1$$

γ
+
2
λ
≥
1

, the interaction between particles of different sizes leads to an additional transport term in the coagulation equation that approximates the solution of the original coagulation equation with injection for large times. We prove the existence of a class of self-similar solutions for suitable choices of $$\gamma $$
γ
and $$\lambda $$
λ
for this class of coagulation equations with transport. We prove that for the complementary case such self-similar solutions do not exist.
The KIR2DL1 intermediate upstream element participates in gene activation
Authors: Wright Paul W. , Li Hongchuan , Rahman Md Ahasanur , Anderson Erik M. , Karwan Megan , Carrell Jeffrey , Anderson Stephen K. 
Published: October 2023

AbstractThe human KIR genes encode a family of class I MHC receptors that are expressed on subsets of NK cells. The expression of KIR proteins is controlled by a stochastic process, and competition between sense and antisense promoter elements has been suggested to program the variegated expression of these genes. Previous studies have demonstrated distinct roles of distal, intermediate, and proximal sense promoter/enhancer elements in gene activation and expression. Conversely, proximal and intronic antisense promoter transcripts have been associated with gene silencing at different stages of NK cell development. In the current study, we examine the effect of intermediate promoter deletion on KIR2DL1 expression in the YTS cell line. Homozygous deletion of the KIR2DL1 intermediate element did not affect proximal promoter activity but resulted in increased detection of upstream transcripts. No significant changes in alternative mRNA splicing or expression levels of KIR2DL1 protein were observed. However, intermediate element deletion was associated with a reduced frequency of gene activation by 5-azacytidine. Taken together, these results indicate that the intermediate element is not an enhancer required for KIR expression; however, it is required for the efficient activation of the gene.
A continuum model for brittle nanowires derived from an atomistic description by $$\Gamma $$-convergence
Authors: Schmidt Bernd , Zeman Jiří 
Published: October 2023

AbstractStarting from a particle system with short-range interactions, we derive a continuum model for the bending, torsion, and brittle fracture of inextensible rods moving in three-dimensional space. As the number of particles tends to infinity, it is assumed that the rod’s thickness is of the same order as the interatomic distance. For this reason, discrete terms and energy contributions from the ultrathin rod’s lateral surface appear in the limiting functional. Fracture energy in the $$\Gamma $$
Γ
-limit is expressed by an implicit cell formula, which covers different modes of fracture, including (complete) cracks, folds, and torsional cracks. In special cases, the cell formula can be significantly simplified—we illustrate this by the example of a full crack and also show that the energy of a mere fold is strictly lower for a class of models. Our approach applies e.g. to atomistic systems with Lennard–Jones-type potentials and is motivated by the research of ceramic nanowires.
Long-term air temperature trends in North Cyprus
Authors: Bey Ergün , Türkeş Murat , Hamed Mohammed Magdy 
Published: October 2023

AbstractThe Eastern Mediterranean region is a major climate change hotspot. The island of Cyprus is likely to face increases in the frequency and intensity of hotter weather conditions and heatwaves in the near future. Studies conducted on the long-term temperature changes in Cyprus are very limited. Here, we present an updated and most detailed assessment of the maximum, minimum, mean and diurnal temperature series in North Cyprus for the period 1975–2021. Data obtained from the meterological stations of North Cyprus have been analysed using Mann–Kendal (MK) test and Theil–Sen slope estimator. Overall the mean minimum temperature trend (Tmin) showed the highest warming rate 0.61 (0.24 ≤ Tmin ≤ 0.99)°C decade−1 followed by the mean temperature trend (Tmean) 0.38 (0.29 ≤ Tmean ≤ 0.50) °C decade−1 and the mean maximum temperature trend (Tmax) 0.28 (0 ≤ Tmax ≤ 0.50) °C decade−1. The magnitude of the warming trend observed in the overall mean minimum temperature of North Cyprus 0.61 °C decade−1, is one of the fastest warming trends reported in the literature. A negative association was detected between the direction of prevailing winds of North Cyprus and the magnitude of increase in the mean temperature trends of the locations with coastal Mediterranean climate, which has pointed out the importance of prevailing winds regarding their cooling effect in coastal areas. The diurnal temperature range trend of North Cyprus indicates an apparent decrease (− 0.33 °C decade−1). The warming impact of urban heat island effect was detected in temperature trends of Nicosia in the Mesaoria plain. The information provided here is invaluable to consider in any climate assessment and adaptation plan in Cyprus. If the current warming trend persists into the future, it will devastatingly impact all sectors and natural systems in the region.
Agropastoralism and re-peasantisation: the importance of mobility and social networks in the páramos of Boyacá, Colombia
Authors: Chohan Jaskiran Kaur , Téllez Jeimy Lorena González , Eisler Mark C. , Escobar María Paula 
Published: October 2023

AbstractThe páramos of Boyacá in Colombia are earmarked for delimitation to prevent the expansion of the agricultural frontier and protect endemic flora that contribute to water provision for cities. A varied conservation toolbox will be used, including the creation of protected areas for re-wilding and the ‘sustainable’ transitioning of livelihoods identified as environmentally destructive. Agriculture and cattle livestock farming has been identified for transitioning. Despite the negative discourse related to livestock holding, this paper argues that small-scale agropastoralism contributes to re-peasantisation and provides the foundations for an agrobiodiverse conservation approach. Agropastoralism facilitates re-peasantisation through strong socio-economic networks, interconnected communities, the solidarity economy, and self-management of natural resources. Whilst, agropastoral mobility spatially binds social networks across large and disconnected spaces. Mobility is also fundamental to dynamic land access and pasture management, as it prevents over-grazing. This exemplifies how resilient socio-economic networks and mobile production strategies could be harnessed for agrobiodiversity, instead of land sparing and other sedentary ‘green’ economies. This paper makes conceptual contributions to ‘autonomy’ in re-peasantisation by empirically demonstrating the importance of mobile and flexible systems of production. It also makes a novel methodological contribution in applying a spatial lens that further unpacks how movement across the páramos facilitates autonomy and re-peasantisation. These themes are explored using interview data from 53 semi-structured interviews with key stakeholders and small-scale agropastoralists from across the páramos and field observation. The paper concludes by recommending a harnessing of agropastoral knowledge, to potentiate agrobiodiversity, for a more socio-ecologically just approach to farming and conservation in the páramos.
Physical exercise and cardiovascular response: design and implementation of a pediatric CMR cohort study
Authors: Bongers-Karmaoui Meddy N. , Hirsch Alexander , Budde Ricardo P. J. , Roest Arno A. W. , Jaddoe Vincent W. V. , Gaillard Romy 
Published: October 2023

AbstractTo examine feasibility and reproducibility and to evaluate the cardiovascular response to an isometric handgrip exercise in low-risk pediatric population using Cardiovascular Magnetic Resonance measurements. In a subgroup of 207 children with a mean age of 16 years participating in a population-based prospective cohort study, children performed an isometric handgrip exercise. During rest and exercise, continuous heart rate and blood pressure were measured. Cardiovascular magnetic resonance (CMR) measurements included left ventricular mass, aortic distensibility and pulse wave velocity at rest and left ventricular end-diastolic and end-systolic volumes, ejection fraction, stroke volume and cardiac output during rest and exercise. 207 children had successful CMR measurements in rest and 184 during exercise. We observed good reproducibility for all cardiac measurements. Heart rate increased with a mean ± standard deviation of 42.6% ± 20.0 and blood pressure with 6.4% ± 7.0, 5.4% ± 6.1 and 11.0% ± 8.3 for systolic, diastolic and mean arterial blood pressure respectively (p-values < 0.05). During exercise, left ventricular end-diastolic and end-systolic volumes and cardiac output increased, whereas left ventricular ejection fraction slightly decreased (p-values < 0.05). Stroke volume did not change significantly. A sustained handgrip exercise of 7 min at 30–40% maximal voluntary contraction is a feasible exercise-test during CMR in a healthy pediatric population, which leads to significant changes in heart rate, blood pressure and functional measurements of the left ventricle in response to exercise. This approach offers great novel opportunities to detect subtle differences in cardiovascular health.
Dissolution of hemp yarns by 1-ethyl-3-methylimidazolium acetate studied with time-temperature superposition
Authors: Alrefaei Nora S. , Hine Peter J. , Ries Michael E. 
Published: October 2023

AbstractThis study investigated the dissolution of hemp yarns in the ionic liquid 1-ethyl-3-methylimidazolium acetate. The yarns were submerged in the ionic liquid at various temperatures and times, then coagulated in water. This resulted in the formation of a composite yarn where two optical microscopy methods were employed to track the growth of the coagulated matrix. In the first, the submerged yarns within water were measured from a side view. In the second, the yarns were dried then analysed by encapsulating in epoxy resin. In both methods, the growth of the swollen ring thickness and the coagulated fraction was tracked as a function of time and temperature. It was found to obey time-temperature superposition, giving a dissolution activation energy of $$78\pm 2 \text{k}\;\text{J}/\text{m}\text{o}\text{l}$$

78
±
2
k

J
/
mol

. In water the yarn is swollen; the swelling ratios of the different regions were calculated to be $$4.4\pm 0.2 \; \text{a}\text{n}\text{d} \; 1.4\pm 0.1$$

4.4
±
0.2

and

1.4
±
0.1

for the outer dissolved ring and the undissolved core, respectively. A novel finding in this study was that the growth of the coagulated region follows a diffusion process, increasing with the square root of time, and so could be modelled to give a diffusion coefficient for the ionic liquid of $$6.74\times {10}^{-13}\;{\text{ m}}^{2}/{\text{s}}$$

6.74
×

10

-
13

m

2

/
s

. This compared well with previously published NMR data for a saturated cellulose solution (23.5%). This strongly suggests that the diffusion of the ions through a saturated layer of cellulose solution controls the dissolution of the yarn. This finding has significant implications for cellulose-based composite production and thus the recycling of cellulose textiles.
On the Question of the Sign of Size Effects in the Elastic Behavior of Foams
Authors: Kirchhof Stephan , Ams Alfons , Hütter Geralf 
Published: October 2023

AbstractDue to their good ratio of stiffness and strength to weight, foam materials find use in lightweight engineering. Though, in many applications like structural bending or tension, the scale separation between macroscopic structure and the foam’s mesostructure like cells size, is relatively weak and the mechanical properties of the foam appear to be size dependent. Positive as well as negative size effects have been observed for certain basic tests of foams, i.e., the material appears either to be more compliant or stiffer than would be expected from larger specimens. Performing tests with sufficiently small specimens is challenging as any disturbances from damage of cell walls during sample preparation or from loading devices must be avoided. Correspondingly, the number of respective data in literature is relatively low and the results are partly contradictory.In order to avoid the problems from sample preparation or bearings, the present study employs virtual tests with CT data of real medium-density ceramic foams. A number of samples of different size is “cut” from the resulting voxel data. Subsequently, the apparent elastic properties of each virtual sample are “measured” directly by a free vibrational analysis using finite cell method, thereby avoiding any disturbances from load application or bearings. The results exhibit a large scatter of the apparent moduli per sample size, but with a clear negative size effect in all investigated basic modes of deformation (bending, torsion, uniaxial). Finally, the results are compared qualitatively and quantitatively to available experimental data from literature, yielding common trends as well as open questions.
Hybrid session-aware recommendation with feature-based models
Authors: Bauer Josef , Jannach Dietmar 
Published: October 2023

AbstractSession-based recommender systems model the interests of users based on their browsing behavior with the goal of making suitable item suggestions in an ongoing usage session. Most existing work in this growing research area make only use of the most recent observed interactions for each user, and they typically solely rely on user–item interaction data (e.g., click events) for interest modeling. Thus, they do not leverage important forms of other information which are commonly available in practical settings. In this work, we therefore propose a hybrid approach forpersonalizedsession-based (“session-aware”) recommendation, which(i)is able to take into account various types of side information as model features and which(ii)can be combined with existing session-based (or session-aware) recommendation models. Technically, our approach is based on stacking several session-based modeling approaches with efficient machine learning methods for tabular data, in our case using Gradient Boosting Machines (GBMs). We successfully evaluated our approach (namedHySAR) on two public e-commerce datasets. Specifically, we also demonstrate the effectiveness of a number of novel model features that we engineered in the course of this research. These features, which were mostly unexplored in previous works, relate to various types of information related to the users, their actions, the items, as well as contextual session characteristics. Different existing recommendation approaches and further problem specific features can be easily added in our generic method to improve recommendations.
Metabolic and genetic responses to simulated overwintering conditions of alfalfa-rhizobia associations contrasted in their freezing tolerance
Authors: D’Amours Emmanuelle , Bertrand Annick , Cloutier Jean , Claessens Annie , Rocher Solen , Seguin Philippe 
Published: October 2023

AbstractThe study of winter stress tolerance in perennial legumes needs to consider the complete symbiotic system including both plants and bacteria since these two partners are differentially affected by stress conditions. Here, we compared the regrowth after a freezing stress of four different associations of two alfalfa populations differing in freezing tolerance (A-TF0 and A-TF7) inoculated with two Sinorhizobium (Ensifer) meliloti strains (B399 and NRG34) of contrasted adaptation to cold. To understand the contribution of each partner to a better regrowth performance of an association after freezing, we identified molecular traits having major roles in cold acclimation, freezing tolerance, and those involved in the crosstalk between alfalfa and its symbiotic partner. Regrowth after exposure to a freezing stress was 35% larger in the A-TF7 × NRG34 than in the A-TF0 × B399 association. The metabolomic study of roots, crowns and, more specifically, nodules, revealed profound changes in these organs, switching from a sink to support cold acclimation to a source of reserves enabling regrowth after deacclimation. Marked increases in concentrations of stachyose and raffinose, two sugars of the raffinose-family oligosaccharides (RFO), and in the expression level of a gene of the RFO synthetic pathway were observed in response to cold acclimation supporting the importance of a protective role for RFO in alfalfa. Both cold-adapted partners of the symbiotic association contributed to increases in arginine concentration in nodules in response to cold acclimation and deacclimation underscoring the importance of N storage and remobilization for a successful overwintering in alfalfa.