bluuebunny/crossref_metadata_2025 huggingface dataset:
Health-related quality of life of children and their parents 6 months after children’s critical illness
Authors: Hordijk José , Verbruggen Sascha , Vanhorebeek Ilse , Van den Berghe Greet , Utens Elisabeth , Joosten Koen , Dulfer Karolijn
Published: November 2019

Purpose

This study aimed to examine health-related quality of life (HRQoL) of children and their parents, 6 months after the child’s admission to the Pediatric Intensive Care Unit (PICU). Associations between parents’ reports regarding HRQoL of their child and of themselves were investigated, as well as associations between children’s baseline variables and their parent-reported HRQoL outcomes.

Methods

This is a secondary analysis of cross-sectional data collected in a group of children who participated in the PEPaNIC trial. Six months after discharge from the PICU, parents of critically ill children completed the Infant–Toddler Quality of Life Questionnaire (ITQOL, for age 0–3 years) or the Child Health Questionnaire-Parent Form 50 (CHQ-PF50, for age 4–18 years), which are parallel questionnaires. Parents completed the Short Form Health Survey (SF-12) regarding their own HRQoL. Results were compared with normative data.

Results

At 6 months’ follow-up, 86 children of the 1343 (6%) had died which resulted in 1257 eligible children. Parents of 576 surviving children (46%) completed the questionnaires. Children of responding parents had less often an acute reason for admission and differed in diagnosis compared with children of non-responders. PICU children scored lower on most ITQOL (n = 390) scales and CHQ-PF50 (n = 186) scales compared with normative data. Parents reported (n = 570) higher scores on the physical (p < 0.001) and lower scores on the mental SF-12 scale (p < 0.001) compared with normative data. Parents̕ mental HRQoL correlated with HRQoL they reported for their child (Pearson Correlations range 0.25–0.57, p < 0.001–0.002). Shorter length of stay, lower risk of mortality, younger age, and cardiac diagnosis were associated with higher parent-reported HRQoL outcomes for the child.

Conclusions

Six months after PICU discharge, critically ill children have lower HRQoL compared with normative data. The mental component of HRQoL is impaired in parents and is associated with lower overall parent-reported HRQoL of their child.
Reflective Judgement and Prudential Rationality: A Contribution to an Inclusive Practical Application of Law
Authors: de Paula Oliveira Maria Lúcia
Published: November 2019

Hannah Arendt has developed a theory of the importance of judgment of taste for political manners, founded on the Kantian aesthetic theory. Nowadays this theory is considered a current theoretical reference for establishing a political way to reconcile the demands of the radicalization of deliberative democracy with the need for political inclusion (Iris Marion Young, Seyla Benhabib). Albena Azmanova in herThe Scandal of Reason: A Critical Theory of Political Judgmentproposes an inclusive political rhetoric. The political theory founded on judgment is based on Kant’s philosophy; it was developed by Arendt and has greatly influenced the current debate, as an alternative theory in which the moral basis of law can be more sensitive to human contexts; a universalist theory more adequate for dealing with the tragic dimension of human life. The theory of political judgment uses the concepts of reflective judgment and ‘enlarged thought’ as its main concepts. As a starting point, a theory like this considers the singular judgments of justice that each person makes. The background, therefore, is not a rational foundation of principles, but the capacity of rational beings to make judgments. This post-metaphysical theory of law, based on a theory of judgment, is a critique of legal positivism, but presents itself as an alternative to the idealistic theory of law. But this theoretical project has received some criticism related to the adequacy of Arendt’s rereading of Kantian philosophy and her attempt to approximate Kant’s reflective judgment to the Aristotelian concept of phronêsis. Some critics, such as Bryan Garsten, believe that Kant’s rhetoric of public reason diminished and displaced the prudential faculty of judgment that Arendt is to be interested in reviving. Arendt’s attempt to find a theory of judgment in Kant’s aesthetic theory is not successful, in Garsten’s view. Our purpose is to show that a critical theory of judicial judgment is not only possible, but necessary; Arendt’s theory of judgment offers an important contribution to a critical theory of judicial judgment, particularly one devoted to the construction of a legal theory that prioritizes a politics of social inclusion. This theory proposes a critical approach to the project of the procedural conception of democracy, since it can mask social exclusion. An adequate understanding of judicial argumentation cannot forget that it happens in a rhetorical context: it is not only important what a discourse says, but how it says it. The radicalization of deliberative democracy supposes a revision of the ways judicial deliberation is thought: not by reference to universal or at least general principles, but taking into consideration what is ‘critically relevant’, with a view to remedying social injustice (following Azmanova).
Dislocations in Grain Boundary Regions: The Origin of Heterogeneous Microstrains in Nanocrystalline Materials
Authors: Zhang Zhenbo , Ódor Éva , Farkas Diana , Jóni Bertalan , Ribárik Gábor , Tichy Géza , Nandam Sree-Harsha , Ivanisenko Julia , Preuss Michael , Ungár Tamás
Published: November 2019

Nanocrystalline materials reveal excellent mechanical properties but the mechanism by which they deform is still debated. X-ray line broadening indicates the presence of large heterogeneous strains even when the average grain size is smaller than 10 nm. Although the primary sources of heterogeneous strains are dislocations, their direct observation in nanocrystalline materials is challenging. In order to identify the source of heterogeneous strains in nanocrystalline materials, we prepared Pd-10 pct Au specimens by inert gas condensation and applied high-pressure torsion (HPT) up to γ ≅ 21. High-resolution transmission electron microscopy (HRTEM) and molecular dynamic (MD) simulations are used to investigate the dislocation structure in the grain interiors and in the grain boundary (GB) regions in the as-prepared and HPT-deformed specimens. Our results show that most of the GBs contain lattice dislocations with high densities. The average dislocation densities determined by HRTEM and MD simulation are in good correlation with the values provided by X-ray line profile analysis. Strain distribution determined by MD simulation is shown to follow the Krivoglaz–Wilkens strain function of dislocations. Experiments, MD simulations, and theoretical analysis all prove that the sources of strain broadening in X-ray diffraction of nanocrystalline materials are lattice dislocations in the GB region. The results are discussed in terms of misfit dislocations emanating in the GB regions reducing elastic strain compatibility. The results provide fundamental new insight for understanding the role of GBs in plastic deformation in both nanograin and coarse grain materials of any grain size.
Calculation of temperature profile in injection wells
Authors: Moradi Babak , Ayoub Mohammed , Bataee Mahmood , Mohammadian Erfan
Published: November 2019

Injection wells have long been an essential asset in enhanced oil recovery, wastewater disposal and carbon dioxide sequestration in petroleum industries. The temperature profile of fluid flow in the injection well is one of the main parameters of interest for petroleum engineers to determine optimum injection conditions and wellbore completion design especially in thermal injection projects and deep wells. In this study, the calculation involved in determining the temperature profile along the depth of wellbore has been revised to be newer and more robust via solving governing wellbore equations. The wellbore is segmented into discrete counterparts for it to be solved simultaneously in terms of mass, momentum and energy balance via wellbore governing equations. Five injection cases from the literatures, incompressible and compressible fluid flows, were used to confirm that the procedure is reproducible in terms of its behaviour, which is similar to field data. The new results acquired from the new procedure are in good agreement with field data collected with a maximum absolute error less than 3 °C.
The Genus Terminalia (Combretaceae): An Ethnopharmacological, Phytochemical and Pharmacological Review
Authors: Zhang Xiao-Rui , Kaunda Joseph Sakah , Zhu Hong-Tao , Wang Dong , Yang Chong-Ren , Zhang Ying-Jun
Published: November 2019

Terminalia Linn, a genus of mostly medium or large trees in the family Combretaceae with about 250 species in the world, is distributed mainly in southern Asia, Himalayas, Madagascar, Australia, and the tropical and subtropical regions of Africa. Many species are used widely in many traditional medicinal systems, e.g., traditional Chinese medicine, Tibetan medicine, and Indian Ayurvedic medicine practices. So far, about 39 species have been phytochemically studied, which led to the identification of 368 compounds, including terpenoids, tannins, flavonoids, phenylpropanoids, simple phenolics and so on. Some of the isolates showed various bioactivities, in vitro or in vivo, such as antitumor, anti HIV-1, antifungal, antimicrobial, antimalarial, antioxidant, diarrhea and analgesic. This review covers research articles from 1934 to 2018, retrieved from SciFinder, Wikipedia, Google Scholar, Chinese Knowledge Network and Baidu Scholar by using “Terminalia” as the search term (“all fields”) with no specific time frame setting for the search. Thirty-nine important medicinal and edible Terminalia species were selected and summarized on their geographical distribution, traditional uses, phytochemistry and related pharmacological activities.
Maximizing rice husk waste for Daucus carota production
Authors: Baiyeri K. P. , Chukwudi U. P. , Chizaram C. A. , Aneke N.
Published: November 2019

Purpose

Rice husk is one of the most widely available agricultural wastes in many rice producing countries of the world. Here, we evaluated carrot production under different rice husk-amended media aimed at providing alternative use for rice husk.

Methods

The experimental design was 2 × 5 × 4 factorial in completely randomized design with six replications. Factor A consist of two production environments—high tunnel and open field while factor B was five growth media—5:0:0, 4:0:1, 3:1:1, 2:2:1 and 1:3:1 (topsoil:rice husk:poultry manure). Factor C was four carrot varieties; ‘Touchon’, ‘Amazonia’, ‘Carrot New Kuroda’ and ‘Touchon Mega’. Data were collected on seedling emergence and yield parameters. The analysed means were separated using FLSD(0.05).

Results

The biomass yield from plants grown in high tunnel was significantly higher than plants in the open field. Highest root weight, wet and dry biomass yield were obtained from medium 4:0:1 followed by 3:1:1. Harvest index ranged from 32.3% in medium 1:3:1 to 62% in 3:1:1. Days to seedling emergence among varieties ranged from 8.5 to 11.3. ‘Amazonia’ variety produced the highest root weight, wet and dry biomass yield and was followed by ‘Touchon Mega’.

Conclusion

Carrot seedling emergence and yield differed in rice husk-amended media under high tunnel and open field environments. ‘Amazonia’ variety grown in media 4:0:1 or 3:1:1 gave the best yield. Inclusion of rice husk in media formulation beyond an optimum rate resulted in yield reduction in carrot. Carrot is sensitive to the physio-chemical properties of its growth medium.
Case-based blended eLearning scenarios—adequate for competence development or more?
Authors: Wadowski Patricia Pia , Litschauer Brigitte , Seitz Tamara , Ertl Sebastian , Löffler-Stastka Henriette
Published: November 2019

Background

Learning, competence development and scientific thinking in medicine need several strategies to facilitate new diagnostic and therapeutic ways. The optimal collaboration between creative thinking and biomedical informatics provides innovation for the individual patient and for a medical school or society. Utilizing the flexibilities of an e‑learning platform, a case based blended learning (CBBL) framework consisting of A) case based textbook material, B) online e‑CBL with question driven learning scenarios and C) simulated patient (SP) contact seminars was developed and implemented in multiple medical fields.

Real-life clinical cases were anonymized and transferred into an interactive and an interdisciplinary eLearning platform.

Methods

As an example of the offered clinical teaching-case collection, an example of a psychiatric case for the disease “posttraumatic stress disorder (PTSD)” is presented: a 30-year-old man with a history of insomnia with difficulties in falling asleep and sleeping through, nightmares, nervousness and psychomotor restlessness. The students are challenged to identify possible differential diagnoses and further get to know the patient’s personal history (loss of relatives due to war, torture and flight from home country). Further, the students are guided through the principles of fear conditioning including translational aspects like neurotransmitter signaling of PTSD pathomechanism (translational and research aspects like dopamine transporter gene polymorphism, long term potentiation and synaptic signaling).

Results/Conclusion

The case presentation comprises different learning aspects: First, declarative knowledge has to be acquired and collected in basic medical sciences, knowledge that is in fact available and can be accessed on the conscious and preconscious level in long-term memory. Second, associative learning leads to the formation of neuronal connections and is an important way of learning and discovering, founded in neural associations. Third, polythematic-crosslinking thinking is needed as ability to link information in a meaningful way. These steps are a typical intellectual ability of gifted learners and researchers that combine previously seemingly unrelated areas to each other and drive innovation.
Before, Now, and After the Event of Terror: Situational Terror Awareness for Civilians in US Homeland Security
Authors: Arfsten Kerrin-Sina
Published: November 2019

This article examines terror awareness as an individualized security practice that allows civilians to respond to situations of emergent terror as they occur, that is, in real time. It is a practice that targets the “time–space” (Walters in Comp Eur Polit 15(5):794–817, 2016) just before, during, and immediately after an event of terror. In recent years, the notion of “terror awareness” has gained salience in official US homeland security discourses. To protect themselves and their communities from harm and ensure an uninterrupted “way of life,” citizens are routinely encouraged to be vigilant and aware to signs of potential terror as they attend to their daily affairs. They are asked to stay informed, remain alert, and be ready to respond to the incipiency of terror so that they may avert—or, at least mitigate—its potentially catastrophic and disruptive consequences. According to the authorities, this kind of habitualized threat awareness can help prevent acts of terror and strengthen community resilience. But what exactly do government and security officials mean when they speak of “terror awareness”? What does this practice of being “terror aware” entail? And how is it supposed to function as a protective mechanism against potential terror? What is its relationship to such abstract concepts as “security,” “preparedness,” and “resilience”? This article seeks to answer these questions. It is based on a careful reading of official and publicly available texts (press statements, policy documents, reports, training brochures, websites, etc.) about homeland security and anti-terrorism, where the notion of “awareness” finds mention and a specific understanding of it—namely as an individualized security technology—is being communicated to the wider public.
Solar power generation forecasting using ensemble approach based on deep learning and statistical methods
Authors: AlKandari Mariam , Ahmad Imtiaz
Published: November 2019

Solar power forecasting will have a significant impact on the future of large-scale renewable energy plants. Predicting photovoltaic power generation depends heavily on climate conditions, which fluctuate over time. In this research, we propose a hybrid model that combines machine-learning methods with Theta statistical method for more accurate prediction of future solar power generation from renewable energy plants. The machine learning models include long short-term memory (LSTM), gate recurrent unit (GRU), AutoEncoder LSTM (Auto-LSTM) and a newly proposed Auto-GRU. To enhance the accuracy of the proposed Machine learning and Statistical Hybrid Model (MLSHM), we employ two diversity techniques, i.e. structural diversity and data diversity. To combine the prediction of the ensemble members in the proposed MLSHM, we exploit four combining methods: simple averaging approach, weighted averaging using linear approach and using non-linear approach, and combination through variance using inverse approach. The proposed MLSHM scheme was validated on two real-time series datasets, that sre Shagaya in Kuwait and Cocoa in the USA. The experiments show that the proposed MLSHM, using all the combination methods, achieved higher accuracy compared to the prediction of the traditional individual models. Results demonstrate that a hybrid model combining machine-learning methods with statistical method outperformed a hybrid model that only combines machine-learning models without statistical method.
Magnetorheological finishing of an irregular-shaped small-bore complex component using a small ball-end permanent-magnet polishing head
Authors: Liu Henan , Cheng Jian , Wang Tingzhang , Chen Mingjun
Published: November 2019

A novel magnetorheological finishing (MRF) process using a small ball-end permanent-magnet polishing head is proposed, and a four-axes linkage dedicated MRF machine tool is fabricated to achieve the nanofinishing of an irregular ψ-shaped small-bore complex component with concave surfaces of a curvature radius less than 3 mm. The processing method of the complex component is introduced. Magnetostatic simulation during the entire finishing path is carried out to analyze the material removal characteristics. A typical ψ-shaped small-bore complex component is polished on the developed device, and a fine surface quality is obtained with surface roughness Ra of 0.0107 μm and surface accuracy of the finished spherical surfaces of 0.3320 μm (PV). These findings indicate that the proposed MRF process can perform the nanofinishing of a kind of small-bore complex component with small-curvature-radius concave surfaces.
New Evidence on Relations between Portugal and the Kingdom of Allada in the Sixteenth Century
Authors: Pinto Pedro , Law Robin
Published: November 2019

The kingdom of Allada in the seventeenth century was an important supplier of slaves for the trans-Atlantic trade, and also an object of Christian missionary activity, but the earlier history of its interactions with Europeans is poorly documented. It has previously been assumed that the first direct Portuguese contact with the Allada area occurred in 1553. However, recently discovered documents in Portuguese archives correct this view. These comprise two petitions to the King of Portugal from an ambassador of the King of Allada currently in Lisbon: although undated, the content of one of them enables it to be dated to either 1544 or 1555, more probably the former; given the time which the ambassador had already spent in Portugal, his original dispatch from Allada occurred in 1540/1541 or 1551/1552. The petitions document the Allada king’s interest in the establishment of a Christian church in his realm, as well as commercial relations.
Coinfection by Trypanosoma cruzi and a fungal pathogen increases survival of Chagasic bugs: advice against a fungal control strategy
Authors: Laura Flores-Villegas A. , Cabrera-Bravo Margarita , De Fuentes-Vicente José A. , Guillermo Jiménez-Cortés J. , Salazar-Schettino Paz María , Bucio-Torres Martha Irene , Córdoba-Aguilar Alex
Published: November 2019

Triatomine bugs carry the parasitic protozoa Trypanosoma cruzi, the causal agent of Chagas disease. It is known that both the parasite and entomopathogenic fungi can decrease bug survival, but the combined effect of both pathogens is not known, which is relevant for biological control purposes. Herein, the survival of the triatomine Meccus pallidipennis (Stal, 1872) was compared when it was coinfected with the fungus Metarhizium anisopliae (Metschnikoff) and T. cruzi, and when both pathogens acted separately. The immune response of the insect was also studied, using phenoloxidase activity in the bug gut and hemolymph, to understand our survival results. Contrary to expectations, triatomine survival was higher in multiple than in single challenges, even though the immune response was lower in cases of multiple infection. We postulate that T. cruzi exerts a protective effect and/or that the insect reduced the resources allocated to defend itself against both pathogens. Based on the present results, the use of M. anisopliae as a control agent should be re-considered.
Development of an immunochromatographic device to detect antibodies for rapid diagnosis of human angiostrongyliasis
Authors: Somboonpatarakun Chalermchai , Intapan Pewpan M. , Sadaow Lakkhana , Rodpai Rutchanee , Sanpool Oranuch , Maleewong Wanchai
Published: November 2019

Cerebral angiostrongyliasis is a central nervous system disease caused byAngiostrongylus cantonensisand can produce eosinophilic meningitis or meningoencephalitis in humans. Sero-immunological techniques, such as the enzyme-linked immunosorbent assay (ELISA) and immunoblotting, are most commonly used for the diagnosis of human angiostrongyliasis. However, diagnosis in remote areas remains problematic because sophisticated equipment and specialized skills are required. To overcome, we have developed the immunochromatographic test (ICT) kit for rapid serological diagnosis of angiostrongyliasis through the detection of anti-A.cantonensis-specific antibodies in human serum. A recombinantA.cantonensisgalectin-2 (rAcGal2) from young adult female worms was used as an antigen for the ICT kit development. Diagnostic values were evaluated and compared using the ELISA. The sensitivity, specificity and positive and negative predictive values of the ICT kit were 87.0, 96.5, 94.6 and 91.4%, respectively, and those of the ELISA were 91.0, 97.2, 95.8 and 94.0%, respectively. The concordance of the ICT kit was 93.9%. We, thus, determined that the ICT kit is sensitive and specific and provides reliable diagnostic results. It is rapid and simple to perform and can be utilized for both point-of-care diagnosis in the bedside laboratory and epidemiological surveys in endemic regions where access to diagnostic equipment is limited.
Toxoplasmosis in pregnancy: a neglected bane but a serious threat in Nigeria
Authors: Oyeyemi Oyetunde T. , Oyeyemi Ifeoluwa T. , Adesina Isaac A. , Tiamiyu Adebisi M. , Oluwafemi Yinka D. , Nwuba Roseangela I. , Grenfell Rafaella F. Q.
Published: November 2019

Toxoplasmosis is a global health threat in which occurrence in pregnant women poses grave consequences to fetal wellbeing. Studies on prenatal Toxoplasma gondii infection are generally limited in sub-Saharan African countries, including Nigeria. The risk of transmission of toxoplasmosis is very high in Nigeria due to the favourable climatic conditions and prevailing behavioural and socio-economic factors that could aid transmission. Currently, there are no systematic and organized procedures for diagnosis and treatment of maternal toxoplasmosis in Nigeria. These conditions forecast possible unabated transmission in many areas and exponential impact on associated adverse events of the disease during pregnancy. This paper highlights the importance of early diagnosis and treatment during pregnancy which may forestall subsequent development of infection in children delivered by infected mothers. Inclusion of toxoplasmosis control policy in the routine antenatal care of pregnant women is therefore strongly recommended.
The Strange Career of Gross Indecency: Race, Sex, and Law in Colonial Singapore
Authors: Chua J. Y.
Published: November 2019

In 1938, the British enacted Section 377A of the Straits Settlements Penal Code, criminalizing male same-sex acts in Singapore. Although the law was neither the first nor only attempt to regulate same-sex activity, it represented a stark intensification in sexual policing. Yet, the reasons for the introduction of Section 377A remain elusive. New sources, including recently declassified documents, reveal that Section 377A intersected with the colonial state's wider project of social control. In the early 1930s, intensified policing of female prostitution inadvertently magnified the visibility of male prostitution in Singapore, just as homosexuality was emerging as a distinct conceptual category. Meanwhile, scandals about sexual liaisons between European officials and Asians men threatened British legitimacy. This “discovery” of homosexuality led the British to introduce Section 377A. As British troops arrived in Singapore in the late 1930s in response to Japanese expansionism in the Far East, concerns about blackmail, military discipline, and the colonial color line governed the enforcement of Section 377A. Between 1938 and 1941, the British disproportionately used Section 377A to punish Asian male prostitutes whom they thought had seduced European men. Secondarily, the British used the provision to deter European soldiers, sailors, and non-officials from exposing themselves to extortion. Seen in this light, Section 377A served as a response to changing configurations of race, class, and sexuality in colonial Singapore.
The Use of Modal Particles in Netherlandic and Belgian Dutch Imperatives
Authors: Fehringer Carol , Cornips Leonie
Published: November 2019

This paper investigates the use of modal particles in spoken Dutch imperatives. Two types of particles are differentiated: mitigating, which are often used as a politeness strategy, and reinforcing, which add extra force to the utterance (Vismans 1994). Our findings show that in Netherlandic Dutch, the use of mitigating particles is determined by the type of occupation that the speaker has: Speakers in service-oriented occupations use mitigating particles significantly more often than speakers in nonservice-oriented occupations, and it is argued that this is a function of their need to be more polite in their role as a service provider. Since the data do not come from the speakers’ workplace interactions but from informal conversations with friends and family, it is suggested that speech patterns of speakers’ professional and private language practices influence each other. The effect of occupation is not observed in Belgian Dutch, however, where mitigating particles are significantly less frequent. Moreover, an important methodological consideration arises from this analysis: There is the need for researchers to examine the data beyond the standard sociolinguistic categorizations made available by large corpora.
Air pollutants and daily number of admissions to psychiatric emergency services: evidence for detrimental mental health effects of ozone
Authors: Bernardini F. , Attademo L. , Trezzi R. , Gobbicchi C. , Balducci P.M. , Del Bello V. , Menculini G. , Pauselli L. , Piselli M. , Sciarma T. , Moretti P. , Tamantini A. , Quartesan R. , Compton M.T. , Tortorella A.
Published: November 2019

Aims

Aim of the current study is to investigate the associations between daily levels of air pollutants (particulate matter, ozone, carbon monoxide, nitrogen dioxide) and daily admissions for mental disorders to the emergency department of two general hospitals in Umbria region (Italy).

Methods

We collected data about daily admissions to psychiatric emergency services of two general hospitals, air pollutants' levels and meteorological data for the time period 1 January 2015 until 31 December 2016. We assessed the impact of an increase in air pollutants on the number of daily admissions using a time-series econometric framework.

Results

A total of 1860 emergency department admissions for mental disorders were identified. We observed a statistically significant impact of ozone levels on daily admissions. The estimated coefficient of O3is statistically significant at the 1% level. All other pollutants were not significantly associated with the number of daily admissions.

Conclusions

Short-term exposure to ozone may be associated with increased psychiatric emergency services admissions. Findings add to previous literature on existing evidence for air pollution to have an impact on mental health. Ozone may be considered a potential environmental risk factor for impaired mental health.
Survival against the Odds: The Baltic States at 100
Authors: Kasekamp Andres
Published: November 2019

This essay examines how Estonia, Latvia and Lithuania have managed to secure their independence and analyzes how they have dealt with the internal and external challenges to their state-building efforts. It compares the first period of statehood between the two world wars with the current period of independence beginning with the collapse of the Soviet Union. Among the critical external tasks they have faced were deterring former imperial powers, fostering regional cooperation and gaining a voice in international organizations. Internally, consolidating democratic systems and integration of ethnic minorities have been the two most significant challenges.
Global Money and Bolshevik Authority: The NEP as the First Socialist Project
Authors: Sanchez-Sibony Oscar
Published: November 2019

The article recounts the Bolsheviks’ first attempt at organizing the economic life of their young project in peace time following the establishment of the New Economic Policy (NEP) in 1921. It argues that the Bolsheviks built their regime on a liberal foundation, concretely the gold standard; although this is often noted in passing, it has not been given the socio-economic weight this political decision deserves. In an attempt to establish their monetary authority within their territory—a sine qua non for the formation of state authority—and in international markets, they appealed to the legitimating institution of the gold standard. The prescriptions of that institution led to a set of policies and chronic political anxieties that structured much of the domestic and international policies of the Soviet Union throughout the 1920s. The study documents the thinking behind the monetary reform that tied the Communist project to the liberal world order as well as the international economic conjunctures that determined its small failures and eventual success. The analysis takes an interdisciplinary approach to the understanding of money as a social institution, and aims to renew the historiographical debate over NEP by establishing its trajectory firmly within the international context that governed it.
The People and the Poster: Theorizing the Soviet Viewer, 1920–1931
Authors: Arbuthnot Mollie
Published: November 2019

The relationship between political posters and their intended viewers was the focus of numerous texts in the 1920s; this article analyzes the ways in which Soviet theorists sought to understand this relationship. They operated in an intellectual context that tried to conceive the modern subject as an active consumer and co-creator, rather than a passive audience. Their study of the contexts of viewing, of display practices and of the role of the viewer as an active participant in the creation of meaning, caused concern about the risk of misunderstandings and led to calls for images to address specific audiences with greater clarity. Many imagined that audiences and producers of images were in dialogue with one another, negotiating over the content, form, and function of political art. The image would thus mediate the relationship between individual and state, integrating political messages into everyday life, and aiming to integrate the individual into the process and practice of propaganda.
Frustration and Violence in Mobile Video Games
Authors: Květon Petr , Jelínek Martin
Published: November 2019

Abstract. This study tests two competing hypotheses, one based on the general aggression model (GAM), the other on the self-determination theory (SDT). GAM suggests that the crucial factor in video games leading to increased aggressiveness is their violent content; SDT contends that gaming is associated with aggression because of the frustration of basic psychological needs. We used a 2×2 between-subject experimental design with a sample of 128 undergraduates. We assigned each participant randomly to one experimental condition defined by a particular video game, using four mobile video games differing in the degree of violence and in the level of their frustration-invoking gameplay. Aggressiveness was measured using the implicit association test (IAT), administered before and after the playing of a video game. We found no evidence of an association between implicit aggressiveness and violent content or frustrating gameplay.
The Late Mesozoic‐Cenozoic Arctic Ocean Climate and Sea Ice History: A Challenge for Past and Future Scientific Ocean Drilling
Authors: Stein Ruediger
Published: November 2019

Over the past 3–4 decades, coincident with global warming and atmospheric CO2increase, Arctic sea ice has significantly decreased in its extent as well as in thickness. When extrapolating this alarming trend, the central Arctic Ocean might become ice‐free during summers within about the next 2–5 decades. Paleoclimate records allow us to better understand the processes controlling modern climate change and distinguish between natural and anthropogenic forcing. In this context, detailed studies of the earlier Earth history characterized by a much warmer global climate with elevated atmospheric CO2concentrations are important. The main focus of this review paper is the long‐term late Mesozoic‐Cenozoic Arctic Ocean climate history from Greenhouse to Icehouse conditions, with special emphasis on Arctic sea ice history. Starting with some information on the Cretaceous Arctic Ocean climate, this paper will concentrate on selected results from Integrated Ocean Drilling Program (IODP) Expedition 302 (Arctic Ocean Coring Expedition (ACEX)), the first scientific drilling in the permanently ice‐covered Arctic Ocean, dealing with the Cenozoic climate history. While these results from ACEX were unprecedented, key questions related to the Cenozoic Arctic climate history remain unanswered, largely due to the major mid‐Cenozoic hiatus (if existing) and partly to the poor recovery of the ACEX record. Following‐up ACEX and its cutting‐edge science, a second scientific drilling on Lomonosov Ridge with a focus on the reconstruction of the continuous and complete Cenozoic Arctic Ocean climate history has currently been proposed and scheduled as IODP Expedition 377 for 2021.
Glacial Melt and Potential Impacts on Water Resources in the Canadian Rocky Mountains
Authors: Castellazzi P. , Burgess D. , Rivera A. , Huang J. , Longuevergne L. , Demuth M. N.
Published: November 2019

As a result of global climate change, glacial melt occurs worldwide. Major impacts are expected on the dynamics of aquifers and rivers in and downstream of mountain ranges. This study aims at quantifying the melt water input fluxes into the watersheds draining the Canadian Rocky Mountains and improving our knowledge about the fate of meltwater within the hydrological cycle. To this end, we use (1) time‐variable gravity data from GRACE satellites that are decomposed into water storage compartments; (2) an ensemble of glacier information: in situ observations, geodetic measurements, and a mass balance model; and (3) in situ surface water and groundwater level observations. The glacier mass balance model estimates a total ice mass change of ~43 Gt for the period 2002–2015, corresponding to an average of −3,056 (±2,275) MCM/yr (million cubic meters per year). 78% of the meltwater total flows west of the continental divide (to the Pacific Ocean), while 22% flows east of the continental divide (to the Arctic Ocean and Hudson Bay). However, the GRACE‐derived total water storage increases, suggesting that groundwater storage compensates for the glacial melt with an increase of 3,976 (±2,819) MCM/yr. A plausible explanation is that meltwater is not immediately flowing down in rivers but rather stored locally in aquifers. This hypothesis is supported by in situ river base flow observations, showing base flow increase in basins draining the ice melt, mostly west of the continental divide. Direct in situ evidences such as well water level time series are not sufficiently available to fully support this hypothesis.
Assimilation of High‐Resolution Soil Moisture Data Into an Integrated Terrestrial Model for a Small‐Scale Head‐Water Catchment
Authors: Gebler S. , Kurtz W. , Pauwels V. R. N. , Kollet S.J. , Vereecken H. , Hendricks Franssen H.‐J.
Published: November 2019

Land surface‐subsurface modeling combined with data assimilation was applied on the Rollesbroich hillslope (Germany). Dense information from a soil moisture sensor network was assimilated with the ensemble Kalman filter applying different scenarios including the update of model states with or without updating of saturated soil hydraulic conductivity on an ensemble size of 128 (or 256) realizations with 3‐D heterogeneous fields of Mualem‐van Genuchten parameters. Simulations were also carried out with a synthetic test case mimicking the Rollesbroich site, to get more insight in the role of model structural errors. The combination of joint updating of model states and hydraulic conductivity was more efficient in updating the soil water content than state updating alone for the real‐world case. On average, the root‐mean‐square error at the sensor locations was reduced by 14% if states and parameters were updated jointly, but discharge estimation was not improved significantly. Synthetic simulations showed much better results with an overall root‐mean‐square error reduction by 55% at independent verification locations in case of daily soil water content data assimilation including parameter estimation. Individual synthetic data assimilation scenarios with parameter estimation showed an increase of the Nash‐Sutcliffe‐Efficiency for discharge from −0.04 for the open loop run to 0.61. This shows that data assimilation in combination with high‐resolution physically based models can strongly improve soil moisture and discharge estimation at the hillslope scale. Large performance differences between synthetic and real‐world experiments indicated the limits of such an approach associated with model structural errors like errors in the prior geostatistical parameters.
The Presence of Africa and Limited Soil Moisture Contribute to Future Drying of South America
Authors: Pietschnig M. , Lambert F. H. , Saint‐Lu M. , Vallis G. K.
Published: November 2019

Over oceans, precipitation generally increases with warming in regions where preindustrial precipitation minus evaporation is positive. This simple “wet‐get‐wetter” principle does not hold over land. The Amazon region and Equatorial Africa currently receive ample rainfall, but the former is projected to dry out whereas precipitation is expected to increase over the latter. Our experiments with an idealized Atmospheric General Circulation Model and realistic continents show that land surface evaporation must be limited in order to obtain drying over the Amazon basin. Our simulations with rectangular, flat continents reveal that large parts of South America would receive more rainfall with warming in the absence of Africa. We suggest that this is due to a warming‐induced Matsuno‐Gill‐type circulation anomaly over Africa. We propose a new simple scaling that diagnoses precipitation change from surface relative humidity change and provides further evidence for the importance of circulation changes for future rainfall.
Interdecadal variation of Indian Ocean basin mode and the impact on Asian summer climate
Authors: Sun Bo , Li Huixin , Zhou Botao
Published: November 2019

This study documents an interdecadal variation in the pattern of Indian Ocean basin mode (IOBM) of sea surface temperature (SST) during boreal summer, where the center of action in the IOBM shifted towards the Arabian Sea after the late 1970s. Correspondingly, the influences of an interannual warming in the tropical Indian Ocean on the Asian summer climate became more significant after the late 1970s due to the Arabian Sea center of action, which are characterized by anomalous subsidence and anticyclones over the Bay of Bengal and the South China Sea. These atmospheric anomalies may result in surface temperature and precipitation anomalies in a wide area of Asia. Numerical experiments demonstrate the different influences of different IOBM patterns on the Asian summer climate. Statistical analysis and numerical experiments indicate a minor role of the different tropical Pacific SSTs concurrent with the different IOBMs in causing the different Asian summer climate anomalies.
Quantifying the Potential for Snow‐Ice Formation in the Arctic Ocean
Authors: Merkouriadi Ioanna , Liston Glen E. , Graham Robert M. , Granskog Mats A.
Published: November 2019

We examine the regional variations and long‐term changes of the potential for snow‐ice formation for level Arctic sea ice from 1980 to 2016. We use daily sea ice motion data and implement a 1‐D snow/ice thermodynamic model that follows the ice trajectories while forcing the simulations with Modern‐Era Retrospective analysis for Research and Applications, Version 2 and ERA‐Interim reanalyses. We find there is potential for snow‐ice formation in level ice over most of the Arctic Ocean; this is true since the 1980s. In addition, the regional variations are very strong. The largest potential is typically found in the Atlantic sector of the Arctic Ocean, particularly in the Greenland Sea, where precipitation is highest. We surmise that, in addition to the annual amount of solid precipitation, potential for snow‐ice formation is controlled by two main factors: the initial second‐year/multiyear ice thickness in the autumn and the timing of first‐year ice formation.
Unprecedented DMSP Concentrations in a Massive Dinoflagellate Bloom in Monterey Bay, CA
Authors: Kiene Ronald P. , Nowinski Brent , Esson Kaitlin , Preston Christina , Marin Roman , Birch James , Scholin Christopher , Ryan John , Moran Mary Ann
Published: November 2019

The organic sulfur compound dimethylsulfoniopropionate (DMSP) is synthesized by numerous species of marine phytoplankton, and its volatile degradation products are a major source of biogenic sulfur to the atmosphere. A massive bloom of the dinoflagellate Akashiwo sanguinea occurred in Monterey Bay, CA, USA, in the fall of 2016 and led to exceptionally high seawater DMSP concentrations that peaked at 4,240 nM. Bacterial consumption rates showed that only a small fraction of the DMSP standing stock flowed through the dissolved DMSP pool per day, contributing to the high DMSP concentrations and creating conditions conducive to production of dimethylsulfide (DMS). Conservative calculations of DMS yield from this persistent A. sanguinea bloom suggest substantial regional‐scale inputs of DMS‐sulfur to the atmosphere. Other recently reported major coastal blooms of A. sanguinea, along with indications that this species may benefit from climate change conditions, reveal a mechanism that could alter oceanic contributions to atmospheric sulfur pools.
Orbital Identification of Hydrated Silica in Jezero Crater, Mars
Authors: Tarnas J. D. , Mustard J. F. , Lin Honglei , Goudge T. A. , Amador E. S. , Bramble M. S. , Kremer C. H. , Zhang X. , Itoh Y. , Parente M.
Published: November 2019

Silica has the highest demonstrated potential of any phase to preserve microfossils on Earth and therefore may host potential biosignatures on Mars. We detected hydrated silica in Jezero crater, the landing site of the National Aeronautics and Space Administration's Mars 2020 rover mission, by applying Dynamic Aperture Factor Analysis/Target Transformation to images from the Compact Reconnaissance Imaging Spectrometer for Mars. Hydrated silica detections with Dynamic Aperture Factor Analysis/Target Transformation were verified using commonly accepted Compact Reconnaissance Imaging Spectrometer for Mars analysis methods. The morphology of geologic units associated with silica was characterized with high‐resolution imaging. Several hypotheses are presented for the formation environment of hydrated silica. All are testable via in situ investigation. We assess the likelihood of silica to preserve biosignatures in these different scenarios based on habitability considerations and biosignature preservation in Earth analog environments and materials. Also reported are possible detections of hydrated silica in the Nili Fossae basement and olivine‐rich units, as well as Al‐phyllosilicate within Jezero crater.
High‐Resolution Optical Observations of Neutral Heating Associated With the Electrodynamics of an Auroral Arc
Authors: Price D. J. , Whiter D. K. , Chadney J. M. , Lanchester B. S.
Published: November 2019

We present results that indicate the existence of two distinct neutral heating processes associated with a discrete auroral arc over Svalbard. Within the order of seconds, the thermospheric temperature profile displays a significant response to the arc on spatial scales smaller than 10 km. It is suggested that both heating signatures are associated with the electrodynamic system responsible for the formation of the arc. Pedersen currents produce a temperature increase of approximately 100 K, observed at altitudes between 80 and 160 kilometres, directly adjacent to the arc structure and on its poleward edge only. In contrast, field‐aligned currents produce a variable temperature increase, of approximately 50 K, which is observed within the arc itself and constrained to a narrow altitude range between 90 and 110 km. By utilizing a range of observations and new analysis methods we are able to measure the atmospheric neutral temperature profile, over auroral altitudes, at unprecedented temporal and spatial scales. The High Throughput Imaging Echelle Spectrograph records high‐resolution emission spectra of the aurora, which are then fitted with synthetic N2 spectra, generated with modeled N2 volume emission rate profiles and a library of trial temperature profiles. The N2 volume emission rate profiles are retrieved from the Southampton ionospheric model using precipitating particle energies and fluxes obtained from Auroral Structure and Kinetics and the EISCAT Svalbard Radar. The application of this technique allows us to produce a time series of neutral temperature profiles and measure the localized heating of the neutral atmosphere resulting from the electrodynamics of the arc.