bluuebunny/crossref_metadata_2025_split huggingface dataset:
Nutzung und Bedingungsfaktoren informeller Lerngelegenheiten von Lehrpersonen in Deutschland
Authors: Röhl Sebastian , Groß Ophoff Jana , Johannmeyer Karen , Cramer Colin 
Published: April 2023

ZusammenfassungDie professionelle Tätigkeit als Lehrperson an Schulen bedarf einer fortlaufenden berufsbegleitenden Professionalisierung im gesamten Prozess der berufsbiografischen Entwicklung. Neben dem Besuch von Fort- und Weiterbildungen umfasst dieses Lernen auch die Nutzung so genannter informeller Lerngelegenheiten, die außerhalb von organisierten Veranstaltungen im Berufsalltag existieren und durch die Lehrperson selbst initiiert werden. In dieser Studie wird das bisher nur wenig erforschte Feld der berufsbegleitenden Professionalisierung von Lehrpersonen in den Blick genommen. Auf Grundlage einer repräsentativen schriftlichen Befragung vonN = 405 Lehrpersonen aus Deutschland werden die faktorielle Struktur, die Nutzungshäufigkeiten informeller Lerngelegenheiten und ihre personalen und strukturellen Determinanten mithilfe von Strukturgleichungsmodellen analysiert. Die Befunde weisen insbesondere auf prädiktive Effekte einzelner demografischer und dispositionaler Merkmale der Lehrpersonen (Alter, Geschlecht, Quer- und Seiteneinstieg, Selbstwirksamkeitserwartung), aber auch von Berufsmerkmalen (Übernahme erweiterter Aufgaben und Funktionen in der Schule) auf die Nutzungshäufigkeit informeller Lerngelegenheiten hin. Schließlich zeigen sich Hinweise auf die Notwendigkeit einer Unterscheidung von Print- und Onlinemedien mit Blick auf das Rezeptionsverhalten. Die Rolle informeller Lerngelegenheiten im Kontext des gesamten Professionalisierungsprozesses von Lehrpersonen wird diskutiert.
Hans J. Morgenthau’s Critique of Legal Positivism: Politics, Justice, and Ethics in International Law
Authors: Chas Carmen 
Published: April 2023

AbstractModern jurisprudence has typically been presented as a debate between legal positivism and natural law. Though the demise of legal positivism has been touted despite its pre-eminence in past decades, it is clear that there remains a vigorous debate surrounding this theory. It is noteworthy that Hans J. Morgenthau’s legal thought and critique of legal positivism have remained unexplored in the context of this debate. Largely forgotten, his legal thought answers questions that lie at the heart of the natural law and legal positivist debate. It showcases his deeply nuanced understanding of legal and political theory and contains a powerful and insightful commentary on the fundamental problems faced by international law. Building on existing literature, this paper unearths Morgenthau’s critique of legal positivism. It does this by re-examining his works, which address the question of whether moral considerations are relevant to determining the content of the law in force. It brings his legal thought to light, which highlights the artificiality of the division between law and morality and offers a nuanced analysis of problems inherent in international law. Ultimately, the paper challenges the claim that the law can be determined without resorting to moral judgement and shows how Morgenthau’s insights remain relevant to legal positivism and natural law debates today.
Inter-screw index as a novel diagnostic indicator of tether breakage
Authors: Wan Sandra H. T. , Guldeniz Ogulcan , Yeung Matthew H. Y. , Cheung Jason P. Y. , Kwan Kenny Y. H. , Cheung Kenneth M. C. 
Published: April 2023

Abstract
Purpose
Tether breakage is the most common complication of Vertebral Body Tethering (VBT) occurring in up to 52% of Adolescent Idiopathic Scoliosis (AIS) patients and risks continued progression and revision. Radiographical diagnosis of tether breakage is commonly defined by a 5° increase in inter-screw angle and associates breakage with loss of correction. However, the sensitivity of this method was 56% only, suggesting that tethers can break without an increase in angulation, which was supported by other studies. To our knowledge, current literature lacks a method merely focusing on the diagnosis of tether breakage radiographically that does not associate the breakages with loss of correction.

Methods
This was a retrospective review of prospectively collected data of AIS patients who underwent VBT. The “inter-screw index” is defined as the percentage increase in inter-screw distance since post-op, with ≥ 13% increase defined as tether breakage as suggested by our mechanical tests. CTs were reviewed to identify the breakages and compared with inter-screw angle and inter-screw index.

Results
94 segments from 13 CTs were reviewed, and 15 tether breakages were identified. Use of inter-screw index correctly identified 14 breakages (93%), whereas ≥ 5° increase in inter-screw angle only identified 12 breakages (80%).

Conclusion
Use of inter-screw index is proven to be more sensitive than inter-screw angle in identifying tether breakages. Therefore, we propose the use of inter-screw index to diagnose tether breakages radiographically. Tether breakages were not necessarily accompanied by a loss of segmental correction leading to an increase in inter-screw angle, especially after skeletal maturity.

Level of evidence
Level 3.
A simple retarding-potential time-of-flight mass spectrometer for electrospray propulsion diagnostics
Authors: Lyne Christopher T. , Liu Miron F. , Rovey Joshua L. 
Published: April 2023

AbstractThe time-of-flight mass spectrometer (ToF-MS) is a useful tool for quantifying the performance of electrospray thrusters and characterizing their plumes. ToF-MS data can be used to calculate the mass-to-charge distribution in the plume, but the kinetic-energy-to-charge (i.e., the potential) distribution must be known first. Here we use a ToF-MS in tandem with a retarding potential (RP) analyzer. By sweeping the retarding potential through the range of potentials present in the plume, both the mass-to-charge distribution and the potential distribution can be measured independently. We demonstrate this technique in a case study using a capillary electrospray emitter and the ionic liquid propellant 1-Ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, abbreviated EMI-Im. We report a linear correlation between retarding potential and mass-to-charge ratio that agrees with published data from more complex orthogonal RP/ToF-MS instruments. Calculated values for the jet velocity and jet breakup potential match within 2% and 12%, respectively. Using conventional ToF-MS, we estimated the propellant flow rate and compared those estimates to direct flow rate measurements. For flow rates between 233 pL/s and 565 pL/s, the error in ToF-based flow rate estimates ranged from -16% to -13% when the plume potential was assumed to be a function of mass-to-charge. Assuming a constant plume potential yielded mixed results. However, using the average stopping potential measured by a retarding potential analyzer resulted in higher errors, ranging from -26% to -30%. Data and MATLAB code are included as supplemental materials so that readers can easily apply the techniques described here.
Pituitary Dysfunction in Idiopathic Intracranial Hypertension: An Analysis of 80 Patients
Authors: Prabhat Nandita , Kaur Kirandeep , Takkar Aastha , Ahuja Chirag , Katoch Deeksha , Goyal Manoj , Dutta Pinaki , Bhansali Anil , Lal Vivek 
Published: April 2023

ABSTRACT:Background:Empty sella is a commonly described imaging entity in patients with idiopathic intracranial hypertension (IIH). Though menstrual and hormonal disturbances have been associated with IIH, available literature lacks systematic analysis of pituitary hormonal disturbances in IIH. More so, the contribution of empty sella in causing pituitary hormonal abnormalities in patients of IIH has not been described. We carried out this study to systematically assess the pituitary hormonal abnormalities in patients with IIH and its relation to empty sella.Methods:Eighty treatment naïve patients of IIH were recruited as per a predefined criterion. Magnetic resonance imaging (MRI) brain with detailed sella imaging and pituitary hormonal profile were done in all patients.Results:Partial empty sella was seen in 55 patients (68.8%). Hormonal abnormalities were detected in 30 patients (37.5%), reduced cortisol levels in 20%, raised prolactin levels in 13.8%, low thyroid-stimulating hormone (TSH) levels in 3.8%, hypogonadism in 1.25%, and elevated levels of gonadotropins were found in 6.25% of participants. Hormonal disturbances were independent and were not associated with the presence of empty sella (p = 0.493).Conclusion:Hormonal abnormalities were observed in 37.5% patients with IIH. These abnormalities did not correlate with the presence or absence of empty sella. Pituitary dysfunction appears to be subclinical in IIH and responds to intracranial pressure reduction, not requiring specific hormonal therapies.
REMARKS ON CONVERGENCE OF MORLEY SEQUENCES
Authors: KHANAKI KARIM 
Published: April 2023

AbstractWe refine results of Gannon [6, Theorem 4.7] and Simon [22, Lemma 2.8] on convergence of Morley sequences. We then introduce the notion of eventual
$NIP$
, as a property of a model, and prove a variant of [15, Corollary 2.2]. Finally, we give new characterizations of generically stable types (for countable theories) and reinforce the main result of Pillay [17] on the model-theoretic meaning of Grothendieck’s double limit theorem.
Ontogenetic responses of physiological fitness in Spodoptera frugiperda (Lepidoptera: Noctuidae) in response to repeated cold exposure
Authors: Mbande Abongile , Mutamiswa Reyard , Chidawanyika Frank 
Published: April 2023

AbstractIn this era of global climate change, intrinsic rapid and evolutionary responses of invasive agricultural pests to thermal variability are of concern given the potential implications on their biogeography and dire consequences on human food security. For insects, chill coma recovery time (CCRT) and critical thermal minima (CTmin), the point at which neuromuscular coordination is lost following cold exposure, remain good indices for cold tolerance. Using laboratory-reared Spodoptera frugiperda (Lepidoptera: Noctuidae), we explored cold tolerance repeated exposure across life stages of this invasive insect pest. Specifically, we measured their CTmin and CCRT across four consecutive assays, each 24 h apart. In addition, we assessed body water content (BWC) and body lipid content (BLC) of the life stages. Our results showed that CTmin improved with repeated exposure in 5th instar larvae, virgin males and females while CCRT improved in 4th, 5th and 6th instar larvae following repeated cold exposure. In addition, the results revealed evidence of cold hardening in this invasive insect pest. However, there was no correlation between cold tolerance and BWC as well as BLC. Our results show capacity for cold hardening and population persistence of S. frugiperda in cooler environments. This suggests potential of fall armyworm (FAW) to withstand considerable harsh winter environments typical of its recently invaded geographic range in sub-Saharan Africa.
City of lights, city of pylons: Infrastructures of illumination in colonial Hanoi, 1880s–1920s
Authors: Endres Kirsten W. 
Published: April 2023

AbstractThis article traces the early stages of urban electrification in the French protectorate of Tonkin (in Vietnam’s north) from the late 1880s to the late 1920s. It focuses on Hanoi, where in 1895 the French entrepreneurs Hermenier and Planté secured a concession for lighting the streets of the soon-to-be capital of French Indochina. Before long, the city’s fast-paced development and the concomitant rise in demand for both public and private lighting necessitated contractual amendments and further capital investment in the upgrading of the power station and grid extensions. In 1902, Hermenier converted the business into a joint stock company named the Société Indochinoise d’Électricité with the aim of enabling further growth and geographical expansion. Contractual arrangements were frequently renegotiated and adjusted to new circumstances. However, electricity supplies kept lagging behind the fast pace of demand growth. During the post-First World War years of colonial economic expansion, power failures and blackouts became a routine occurrence and were a frequent target of press coverage. It was only in the late 1920s that electricity supplies improved and turned Hanoi into a city of lights. Although the majority of Vietnamese residents remained excluded from private electricity access throughout the colonial period, electric power quickly became a fact of everyday life for an emerging Vietnamese urban bourgeoisie and served as a marker of modern sophistication. Plans for an interconnected distribution network in the Tonkin delta subsequently also triggered hopes for an electrified future for the countryside.
Roman ‘Grand Strategy’ in Action? Claudius and the Annexation of Britain and Thrace
Authors: Graafstal Erik P. 
Published: April 2023

AbstractA longstanding debate among ancient historians and students of Roman frontiers concerns the reality and effective reach of Roman imperial policy. Certainly when new military commitments were involved, the slowness of supply and information meant that major moves had to be planned well in advance. This paper focuses on the provincialisation of Britain and Thrace in a.d. 43 and c. 45. The dating evidence provided by tree rings, coins and milestones suggests that logistic preparation for the invasion of Britain started at least two years before the event. This pattern, of a newly installed Emperor immediately initiating a campaign on the northern frontiers, allowing two years for logistic preparation, is seen no fewer than seven times between Caligula and Caracalla.
Stochastic comparisons of largest claim and aggregate claim amounts
Authors: Panja Arindam , Kundu Pradip , Hazra Nil Kamal , Pradhan Biswabrata 
Published: April 2023

AbstractIn this paper, we establish some stochastic comparison results for largest claim amounts of two sets of independent and also for interdependent portfolios under the setup of the proportional odds model. We also establish stochastic comparison results for aggregate claim amounts of two sets of independent portfolios. Further, stochastic comparisons for largest claim amounts from two sets of independent multiple-outlier claims have also been studied. The results we obtained apply to the whole family of extended distributions, also known as the Marshall–Olkin family of distributions. We have given many numerical examples to illustrate the results obtained.
Personal, behavioural and socio-environmental correlates of emerging adults’ sustainable food consumption in a cross-sectional analysis
Authors: Ludwig-Borycz Elizabeth , Neumark-Sztainer Dianne , Larson Nicole , Baylin Ana , Jones Andrew D , Webster Allison , Bauer Katherine W 
Published: April 2023

AbstractObjective:Describe how dietary intake patterns of US young adults align with the EAT-Lancet Planetary Health Diet (PHD) sustainable diet goals and identify personal, behavioural, and socio-environmental correlates of sustainable intake.Design:Data on past-year dietary intake were captured using a FFQ. The PHD was applied to specific food groups, and a total PHD score was calculated. Linear regression models were used to identify associations between personal, behavioural and socio-environmental factors and PHD scores.Setting:This cross-sectional analysis uses data from the second wave of EAT 2010–2018 (Eating and Activity over Time), a population-based longitudinal study recruited in Minnesota.Participants:Ethnically/racially diverse group of participants (n 1308) with a mean age of 22·1 (sd 2·0) years.Results:The mean PHD score was 4·1 (sd 1·4) on a scale of 0–14, with 14 representing the most sustainable. On average, participants consumed fewer whole grains, fish, legumes, soya, and nuts than ideal for a sustainable diet, and an excess of eggs, added sugar, and meat. The PHD score was higher for participants with higher socio-economic status (SES) and greater educational attainment. Higher home availability of healthy food (β = 0·24, P < 0·001) and less frequent fast-food consumption (β = –0·26, P < 0·001) were the strongest correlates of PHD scores.Conclusions:Results suggest that a high percentage of participants may not be achieving the sustainable diet goals defined by the PHD. Reductions in meat consumption and increases in plant-based foods are necessary to increase the sustainability of US young adults’ diets.
The poor woman’s energy: Low-modernist solar technologies and international development, 1878–1966
Authors: Chatterjee Elizabeth 
Published: April 2023

AbstractSolar energy often appears a resource without a history, perpetually novel and promising futuristic abundance. This overlooks a long episode of ‘low-modernist’ solar research in and for the global South. Focusing especially on India and detouring through Mexico, two important arenas for early solar experimentation, this article traces an alternative history of solar technologies as austere everyday fixes for developing countries. In parallel with the well-known postcolonial focus on high-modernist energy mega-projects, the narrow transnational community of solar experts retained a competing tendency to think small. At its heart lay a dualistic conception of the modern energy economy: flexible and resource-intensive grid electricity for urban centres, inferior off-grid devices to meet the minimal and static needs of the rural poor. This impoverished, feminized Third World projected user base resulted in persistent underinvestment and failed commercialization, helping to explain why solar technologies did not take off earlier. While solar experts emphasized the regional exceptionalism of the arid tropics, the teleological linkage between modernity and ever-rising energy abundance was rejuvenated from below as rural communities began to imagine the high-energy good life as a universal aspiration.
Attitudes and Viewpoints Toward Prevention Trials in Alzheimer’s Disease
Authors: Pauli Philipp , Goetz Katja , Rogge Annette , Bartsch Thorsten , Philippen Sarah , Berg Daniela , Hertrampf Katrin 
Published: April 2023

Abstract: Alzheimer’s disease (AD) prevention studies use biomarkers to determine risk in asymptomatic study participants. This involves multifaceted implications. Determinants regarding participation in these trials are therefore of particular relevance. We used semistructured individual interviews to interview uninvolved persons ( n = 10), relatives of Alzheimer’s patients ( n = 10), and patients with mild cognitive impairment ( n = 5) and analyzed the interviews using qualitative content analysis according to Mayring. We discovered various factors to be positive motivations for participation; the most significant inhibiting factor was concern about negative psychological effects. These motivations and concerns should be specifically addressed in the study design of AD prevention trials. The fears and concerns expressed highlight the importance of a good methodological and ethical framework to increase participant acceptance.
A Comparative Study Between Regional Atmospheric Model Simulations Coupled and Uncoupled to a Regional Ocean Model of the Indian Summer Monsoon
Authors: Jayasankar C. B. , Misra Vasubandhu , Karmakar Nirupam 
Published: April 2023

AbstractWe evaluate the impact of air‐sea coupling in simulating the characteristics of the Indian summer monsoon (ISM) and its intraseasonal oscillations (ISOs) by using a coupled ocean‐atmosphere regional climate model (CRSM) and an atmosphere‐only regional climate model (URSM). These 20‐km resolution regional climate models (RCMs) were driven by the boundary conditions from Community Climate System Model version 4 (CCSM4) global model. The mean ISM rainfall simulated by URSM and CRSM is comparable with observations and shows an improvement over the CCSM4. The systematic error in the spatial distribution of the mean June–September low‐level and upper‐level winds, sea surface temperature, and latent heat flux shows that CRSM performs better than URSM, suggesting the benefits of air‐sea coupling in the RCM simulations of the mean ISM. Both the CRSM and the URSM perform reasonably and comparably in capturing the spatiotemporal evolution of 10–20‐day high‐frequency and 20–70‐day low‐frequency ISOs of the ISM rainfall. These RCMs simulated the observed features of the ISO‐filtered rainfall anomalies that propagate at a faster rate across the Arabian Sea compared to that over the Bay of Bengal. Furthermore, the difference in the track density of the monsoon low‐pressure systems between the wet and the dry phases of ISOs shows insignificant differences between CRSM and URSM but is found to be superior to the CCSM4 simulation. This study suggests a relative insensitivity of air‐sea coupling in the RCM for simulating ISO and LPS features of ISM, which is likely abetted by the realistic ISO signals in the parent CCSM4.
Compositional Evolution of Polygenetic Fissure Volcanic Systems: Insights From the Latest Eruptions at Craters of the Moon Volcanic Field
Authors: Chadwick John , Chadwick Claire , Kamenov George 
Published: April 2023

AbstractThe Craters of the Moon (COM) Volcanic Field in Idaho is the largest mostly Holocene lava field in the conterminous U.S. and the site of the most recent volcanism in the Yellowstone‐Snake River Plain province. This prominent example of a polygenetic fissure field has produced over 60 eruptions over the past 15,000 years from the Great Rift fissure system. The eight most recent lava flows, known as Period A, were erupted between about 2,500 and 2,000 years ago. In this study, major and trace element and Pb‐Sr‐Nd isotope data were obtained, with several samples collected from each flow from widely spaced locations to evaluate heterogeneity in their source magmas. The results reveal three previously unrecognized compositional groups that may represent separate magma batches, and that assimilation and fractional crystallization (AFC) controlled the evolution of the entire Period A suite. The three oldest flows were periodic withdrawals from a body of highly evolved and poorly homogenized magma, and four later flows represent successive samplings from a stratified body of more primitive magma. These two flow groups are related via variable AFC modeled with Magma Chamber Simulator software, with Neogene rhyolite as a plausible crustal assimilant. A third compositional type that requires a different parent magma and AFC history is represented by a single flow erupted from vents a few km away from the others. The compositional evolution and variability observed in this sequence of flows provide new insights into how magmas are generated, modified, and delivered in such polygenetic fissure systems.