bluuebunny/crossref_metadata_2025 huggingface dataset:
Is There an Association Between Diet, Physical Activity and Depressive Symptoms in the Perinatal Period? An Analysis of the UPBEAT Cohort of Obese Pregnant Women
Authors: Wilson Claire A. , Seed Paul , Flynn Angela C. , Howard Louise M. , Molyneaux Emma , Sigurdardottir Julie , Poston Lucilla
Published: April 2020

Introduction

Depression is a common morbidity of the perinatal period (during pregnancy and up to one year postpartum). There is evidence for an association between diet and physical activity, and depression in the non-pregnant population but this association has been relatively less explored during the perinatal period; particularly poorly understood is the relationship between specific dietary components and depression. The aim of this study was to explore the association between glycaemic load, saturated fat intake and physical activity and depressive symptoms in a high-risk population of obese pregnant women.

Methods

In a cohort of 1522 women participating in the UPBEAT trial, physical activity, glycaemic load and saturated fat intake were used as predictors of depressive symptoms measured using the Edinburgh Postnatal Depression Scale (EPDS). Measures taken in early pregnancy were used in linear and logistic regression models. Repeated measures at three points during pregnancy and at six months postpartum were utilised in multilevel mixed effects models. Multiple imputation was used to account for missing data.

Results

Increased glycaemic load was associated with small increases in levels of depressive symptoms across the perinatal period (adjusted beta coefficient 0.01; 95% CI 0.01,0.02). There was no evidence for an association between reduced physical activity and increased saturated fat intake and increased levels of depressive symptoms.

Conclusions

Glycaemic load may be a useful focus for interventions aiming to optimise the mental health of obese women in the perinatal period.
Quantum algorithms for typical hard problems: a perspective of cryptanalysis
Authors: Suo Jingwen , Wang Licheng , Yang Sijia , Zheng Wenjie , Zhang Jiankang
Published: April 2020

In typical well-known cryptosystem, the hardness of classical problems plays a fundamental role in ensuring its security. While, with the booming of quantum computation, some classical hard problems tend to be vulnerable when confronted with the already-known quantum attacks, as a result, it is necessary to develop the post-quantum cryptosystem to resist the quantum attacks. With the purpose to bridge the two disciplines, it is significant to summarize known quantum algorithms and their threats toward these cryptographic intractable problems from a perspective of cryptanalysis. In this paper, we discussed the designing methodology, algorithm framework and latest progress of the mathematic hard problems on which the typical cryptosystems depend, including integer factorization problem, discrete logarithmic problem and its variants, lattice problem, dihedral hidden subgroup problems and extrapolated dihedral coset problem. It illustrated the reason why some cryptosystems such as RSA and ECC are not resistant to quantum attacks, yet some of them like lattice cryptosystems remain intact facing quantum attacks.
Impact of Storage Time on Characteristics of Synthetic Greywater for Two Different Pollutant Strengths to Be Treated or Recycled
Authors: Abed S. N. , Almuktar S. A. , Scholz M.
Published: April 2020

Storage of greywater is controversial for environmental and health reasons. Artificial greywater was assessed after 2 and 7 days of storage time. Two different greywater pollutant strengths were statistically compared at each storage time. A negative significant (p < 0.05) correlation was evident with increasing storage time for the 5-day biochemical oxygen demand for more than 2 days. However, the concentrations of 5-day biochemical oxygen and chemical oxygen demands reduced significantly at 2 days of storage when compared with freshly prepared greywater. Biodegradability (5-day biochemical oxygen demand/chemical oxygen demand ratio) decreased significantly after storage to between 0.14 and 0.39. The nitrification process was improved significantly with increasing storage time concerning low strength greywater with a significant increase in the removal of ammonia-nitrogen and a non-significant decrease in the removal of nitrate-nitrogen. The correlation was significantly positive between ammonia-nitrogen and 5-day biochemical oxygen demand for stored greywater, while it was significantly negative between total suspended solids and both 5-day biochemical oxygen demand and dissolved oxygen. Significant reductions in colour, total suspended solids and turbidity were correlated positively with storage time. Precipitation of dissolved metals was suspected to occur in storing greywater by binding the inorganic components with the sediment and collide surfaces through adsorption, allowing a significant drop in concentrations of dissolved and undissolved metals with increasing storage time through sedimentation. Synthetic greywater of low mineral pollution had significantly higher removals for almost all concentrations compared with those for high concentrations. More advanced technologies for high trace element removal are required.
Assessment of changes in the municipal waste accumulation in Poland
Authors: Przydatek Grzegorz
Published: April 2020

The aim of the work was to assess the effectiveness of municipal waste management in Poland over the period 2012–2017, considering the accumulation of waste collected selectively and non-selectively per capita and the changes resulting from the implementation of Directives 1999/31/EC and 2008/98/EC in Polish legislation. Within 6 years, noticeable changes in the country initiated by the EU and national legislation indicated an increase in the amount of waste to be recovered. However, the achieved efficiency of limiting the deposited waste at the level of 20% was moderate, despite the existence of infrastructure allowing for increased recovery. The analysis of the efficiency of waste management showed a certain convergence of the increase in the amount of generated waste and gross domestic product (GDP). On the other hand, the increase in accumulated organic waste per capita in all three dimensions of time was the most significant and exceeded 20%.
The Impact of Informal Caregiving on Labour Supply Before and After a Parent’s Death
Authors: Vangen Hanna
Published: April 2020

Most European countries are facing an ageing population, which points to a need for having as many people as possible of employable age working full time. The growing number of older people increases the pressure on health and care services as well as on family caregivers. Adult children are important care-providers in their parents’ final years. This study investigates how having a parent in need of care affects sons’ and daughters’ labour market participation. The question is investigated by analysing longitudinal data from the Norwegian life course, ageing and generation study. The empirical strategy is first to use register information about parents’ demise as an indicator for amplified care needs in the period prior to their death and explore patterns in labour market participation (employment and earnings) before and after the death of a parent. Then, register data are combined with survey data in order to separate caregivers from non-caregivers prior to the loss of a parent. The analyses show a negative employment trend in the years before and after the loss of a lone parent. They also show a different development in earnings between caregivers and non-caregivers. Caregivers have a weaker development in earnings both before and after the death of their parent compared to non-caregivers. The study concludes that caring for older parents has a negative impact on the children’s labour market participation in both the period with substantial caregiving needs and the period following the parents’ demise.
How to Write and Publish a Research Paper for a Peer-Reviewed Journal
Authors: Busse Clara , August Ella
Published: April 2020

Communicating research findings is an essential step in the research process. Often, peer-reviewed journals are the forum for such communication, yet many researchers are never taught how to write a publishable scientific paper. In this article, we explain the basic structure of a scientific paper and describe the information that should be included in each section. We also identify common pitfalls for each section and recommend strategies to avoid them. Further, we give advice about target journal selection and authorship. In the online resource 1, we provide an example of a high-quality scientific paper, with annotations identifying the elements we describe in this article.
Appropriate household point-of-use water purifier selection template considering a rural case study in western India
Authors: Venkatesha Ramprasad , Rao Anand B. , Kedare Shireesh B.
Published: April 2020

There is a wide range of household water treatment options available for a variety of contexts. Each water purifier has its own optimal range of operation. Simultaneously, the diverse environments and circumstances set different boundary conditions for such purifiers to operate successfully. In low-income countries, especially with unregulated and decentralised water supply mechanisms such as open wells, the use of point-of-use water purifiers is quite widespread. However, it is observed that the water purifier may not be appropriate to the prevailing context. Hence, this short review aims to introduce a wide range of water purification alternatives available for a family (of about 3–5 members) and the way they could be classified and reviewed. The perspective selected is that of a low-income rural household in coastal region of western India and the scenario of water quality which is primarily affected by physical and biological impurities and not necessarily severe chemical contamination. Based on this context, attributes are defined and prioritised; further, a scale to rate the purifiers is worked out. A selected number of point-of-use water purifiers for which data from the literature or field observations are available are reviewed against these attributes for the sample context chosen. This independent review methodology consists of setting the attributes and comparing the water purifiers based on the sum of prioritised scores and thus acts like a selection template and can be adopted to select the appropriate purifier for any other scenario accordingly.
Health Emergency and Disaster Risk Management: Five Years into Implementation of the Sendai Framework
Authors: Wright Natalie , Fagan Lucy , Lapitan Jostacio M. , Kayano Ryoma , Abrahams Jonathan , Huda Qudsia , Murray Virginia
Published: April 2020

The Sendai Framework for Disaster Risk Reduction 2015–2030 recognizes health at the heart of disaster risk management (DRM) at the global policy level. Five years on, it has catalyzed the rapid development of the field of Health Emergency and Disaster Risk Management (Health EDRM) by providing a mandate for building partnerships as well as enhancing scientific research. Key milestones achieved include publication of the World Health Organization’s Health EDRM Framework, development of the WHO Thematic Platform for Health EDRM and the WHO Health EDRM Research Network, and further application of health information principles to DRM. Furthermore, health actors at all levels have continued to engage in the Sendai Framework processes and have had a key role in its implementation and proposed monitoring. There have been significant gains made through the partnership of health and DRM, but the relationship has not been without its challenges. Many national, regional, and global initiatives continue to operate with a lack of consistency and of linkages to respond to the Sendai Framework’s call for embedding health resilience in DRM, and conversely, embedding DRM in health resilience. Overcoming this hurdle is important, and doing so will be a key marker of success of the next 10 years of partnership under the Sendai Framework.
Volunteer-led physical activity interventions to improve health outcomes for community-dwelling older people: a systematic review
Authors: Lim S. E. R. , Cox N. J. , Tan Q. Y. , Ibrahim K. , Roberts H. C.
Published: April 2020

Background

Physical activity (PA) is important for older people to maintain functional independence and healthy ageing. There is strong evidence to support the benefits of physical activity interventions on the health outcomes of older adults. Nonetheless, innovative approaches are needed to ensure that these interventions are practical and sustainable.

Aim

This systematic review explores the effectiveness of volunteer-led PA interventions in improving health outcomes for community-dwelling older people.

Methods

Five databases (MEDLINE, Embase, CINAHL, PEDro, Cochrane library) were systematically searched for studies using trained volunteers to deliver PA interventions for community-dwelling older people aged ≥ 65 years. Meta-analysis was not conducted due to included study heterogeneity.

Results

Twelve papers describing eight studies (five papers reported different outcomes from the same study) were included in the review. All eight studies included strength and balance exercises and frequency of PA ranged from weekly to three times a week. Volunteer-led exercises led to improvements in functional status measured using the short physical performance battery, timed up and go test, Barthel Index, single leg stand, step touch test, chair stand test, and functional reach. Frailty status identified by grip strength measurement or the use of long-term care insurance improved with volunteer-led exercises. Interventions led to improvement in fear of falls and maintained or improved the quality of life. The impact on PA levels were mixed.

Conclusion

Limited evidence suggests that volunteer-led PA interventions that include resistance exercise training, can improve outcomes of community-dwelling older adults including functional status, frailty status, and reduction in fear of falls. More high-quality RCTs are needed to investigate the effects of volunteer-led PA interventions among older people.
Approaches to the diagnosis and prevention of frailty
Authors: Woolford S. J. , Sohan O. , Dennison E. M. , Cooper C. , Patel H. P.
Published: April 2020

An individual who is living with frailty has impairments in homeostasis across several body systems and is more vulnerable to stressors that may ultimately predispose them to negative health-related outcomes, disability and increased healthcare use. Approximately a quarter of individuals aged > 85 years are living with frailty and as such the identification of those who are frail is a public health priority. Given that the syndrome of frailty is defined by progressive and gradual loss of physiological reserves there is much scope to attempt to modify the trajectory of the frailty syndrome via physical activity and nutritional interventions. In this review we give an up to date account on the identification of frailty in clinical practice and offer insights into physical activity and nutritional strategies that may be beneficial to modify or reverse the frailty syndrome.
Referral Pattern for Fetal Echocardiography Over 10 Years in a Single Fetal Imaging Centre from Southern India
Authors: Thulasi Ammal Mythili , Chidambarathanu Shanthi , Suresh Indrani , Seshadri Suresh
Published: April 2020

Aim To study the trend in referral patterns for fetal echocardiography (FE) and the outcome

Methods Retrospective study of fetuses referred to a single fetal imaging center for FE from Jan 2008 to Dec 2017. The study group was divided into group 1 (2008–2012) and group 2 (2013–2017). Indications were categorized into ‘low-risk’, ‘maternal-risk’ and ‘fetal-risk’. Detection of cardiac defect (CHD) was noted as abnormal outcome and it was analysed in relation to the referral indication.

Results The study group had 32,679 cases, 11,468 in group 1 and 21,211 in group 2. Total number of referrals showed an increase of 84% between first and second half of study. ‘Low-risk’ referrals were the most common in both groups but high risk referrals had shown an increase of 24.5% over years. Maternal diabetes was the most common ‘maternal-risk’ factor and abnormal cardiac finding in obstetric scan was the common ‘fetal-risk’ indication. Incidence of CHD increased from 4.6 to 10.2% during the study period. CHD was seen more in ‘fetal-risk’ indications (65%) compared to other risk groups (p < 0.05). Maternal-risk indications individually did not show a significant relationship to CHD. Abnormal cardiac findings in scan, extra-cardiac anomaly, aneuploidy screen positivity, single umbilical artery, growth and liquor abnormality showed a higher risk for CHD. Among low-risk 22.5% showed CHD.

Conclusion Referral of high-risk cases for FE has increased recently. Abnormal fetal findings in scan or screening tests was significantly associated with fetal CHD. A significant percentage of CHD was detected in the low-risk group. Strengthening fetal cardiac screening is needed to optimise appropriate risk stratification as well as to increase detection of cardiac anomalies.
Schichtarbeit und Krebserkrankungen
Authors: Rabstein Sylvia , Behrens Thomas , Pallapies Dirk , Eisenhawer Christian , Brüning Thomas
Published: April 2020

Die gesundheitlichen Auswirkungen von Schicht- und Nachtarbeit sind Gegenstand vieler wissenschaftlicher Untersuchungen. Das Spektrum möglicher Erkrankungen und Endpunkte, die mit Schicht- und Nachtarbeit assoziiert sind, reicht von chronischen Erkrankungen wie Krebs, Herz-Kreislauf-Erkrankungen über Schlafstörungen, psychische Belastungen bis hin zu Reproduktionsstörungen und Unfällen. Im Juni 2019 stufte die Internationale Krebsagentur (IARC) Nachtarbeit als wahrscheinlich krebserregend ein (Gruppe 2A) und bestätigte damit ihre Einschätzung aus dem Jahr 2007. Die Expertengruppe der IARC weist dabei auf die immer noch sehr heterogenen Studienergebnisse hin. Während der überwiegende Teil der populationsbasierten Fall-Kontroll-Studien positive Assoziationen zwischen Schichtarbeit und Krebserkrankungen zeigte, wurde in vielen Kohorten-Studien keine Assoziation beobachtet. Die Frage, ob erhöhte Krebsrisiken tatsächlich auf Schicht- oder Nachtarbeit zurückgeführt werden können, kann daher zurzeit nicht zweifelsfrei beantwortet werden. Der folgende Beitrag gibt einen Überblick zu offenen Fragen und Aspekten der Schichtarbeitsforschung am Beispiel von Krebserkrankungen und diskutiert die aktuelle arbeitsmedizinische Einschätzung.
On the Sensing, Actuating and Energy Harvesting Properties of a Composite Plate with Piezoelectric Patches
Authors: Piliposian G. , Hasanyan A. , Piliposyan G. , Jilavyan H.
Published: April 2020

The paper investigates how the energy input/output of a composite plate with piezoelectric patches, acting as a sensor, actuator, or energy harvester, can be regulated by changing the parameters of the piezoelectric patches, the external vibrating frequency and the boundary conditions imposed on the host plate-layer. It is shown that for any size of the piezoelectric patches there is always one location where the energy input/output reaches a maximum, whether the process is very low frequency or higher frequency. Furthermore, for a dynamic vibrational loading the energy input/output is highly sensitive whether the operating frequency is below or above the system’s resonance frequency. For the operating frequency close to but below the resonance frequency, the location for the maximum energy input/output is considerably different from the optimal location when the operating frequency is just above the systems resonance frequency. That is to say, a slight change in the operating frequency around the resonance frequency can make a considerable difference to the optimal locations for the piezoelectric patches for maximum energy input/output.
Generating Nanodot Structures on Stainless-Steel Surfaces by Cross Scanning of a Picosecond Pulsed Laser
Authors: Kobayashi Tomoki , Yan Jiwang
Published: April 2020

Ultrashort pulsed laser-induced periodic surface structures (LIPSS) can be generated on different kinds of materials, which are widely utilized for modifying surface properties such as wettability, adhesion, and tribological, as well as optical performances. Previous studies have focused mainly on one-dimensional LIPSS (i.e., line structure) generation. In this study, a picosecond pulsed laser was used to irradiate stainless-steel surfaces for generating two-dimensional LIPSS, namely nanodot structures, by cross-scanning the laser beam for a different number of times. The obtained nanodot structures were found to be super hydrophilic just after laser irradiation, but turned to be hydrophobic after exposure in air for a few days. By cross-scanning the laser beam for the same number of times, local LIPSS rewriting was realized. This study showed the possibility of improving the homogeneity of the surface properties of steel materials through laser-induced nanodot structuring.
MHD Pulsating Flow of Casson Nanofluid in a Vertical Porous Space with Thermal Radiation and Joule Heating
Authors: Kumar Challa Kalyan , Srinivas Suripeddi , Subramanyam Reddy Anala
Published: April 2020

In this investigation, the magnetohydrodynamic pulsatile flow of Casson nanofluid through a vertical channel embedded in porous medium with thermal radiation and heat generation/absorption has been analyzed using Buongiorno model. The influence of viscous and Joules dissipations are taken into account. The governing coupled partial differential equations are reduced to ordinary differential equations using perturbation scheme and then solved numerically by using Runge-Kutta fourth order technique along with shooting method. The impact of various emerging parameters on velocity, temperature, nanoparticles concentration, Nusselt number and Sherwood number distributions are analyzed in detail. Analysis indicates that the temperature distribution increases for a given increase in Brownian motion parameter and thermophoresis parameter, while it decreases with an increase in Hartmann number. Further, the nanoparticles concentration distribution decreases with an increase in the chemical reaction parameter and the Lewis number, while it increases for a given increase in the Brownian motion parameter.
Port of Trade or Commodity Market? Livorno and Cross-Cultural Trade in the Early Modern Mediterranean
Authors: Tazzara Corey
Published: April 2020

This article critiques the application of Karl Polanyi's port of trade model to the development of Livorno, which has often been ascribed to commercial brokerage across cultural, political, and ecological frontiers. Livorno's neutrality during times of war and its position in the corsair and privateering economies would appear to support just such an interpretation of Livorno's growth. Nevertheless, while such interstitial roles were real, by the 1640s they were subordinate to the larger currents of regional and long-distance trade. Livorno's development is better explained with reference to the rise of commodity markets as entrepôts for managing far-flung distribution networks. The Tuscan port's rapid rise should be understood as an integral phenomenon of early modern capitalism, more akin to places such as London or Amsterdam than to the ports of trade studied by Polanyi.
How does inequality affect our sense of moral obligation?
Authors: Sinnott-Armstrong Walter
Published: April 2020

Tomasello's novel and insightful theory of obligation explains why we sometimes sense an obligation to treat each other equally, but he has not yet explained why human morality also allows and enables much inequality in wealth and power. Ullman-Margalit's (1977) account of norms of partiality suggested a different source and kind of norms that might help to fill out Tomasello's picture.
The role of affect in feelings of obligation
Authors: Beeler-Duden Stefen , Yucel Meltem , Vaish Amrisha
Published: April 2020

Tomasello offers a compelling account of the emergence of humans’ sense of obligation. We suggest that more needs to be said about the role of affect in the creation of obligations. We also argue that positive emotions such as gratitude evolved to encourage individuals to fulfill cooperative obligations without the negative quality that Tomasello proposes is inherent in obligations.
The divided we and multiple obligations
Authors: Franks Bradley , Stewart Andrew
Published: April 2020

Tomasello's account of the origins and nature of moral obligation rightly emphasises the key roles of social relations and a cooperative sense of “we.” However, we suggest that it overlooks the complexity of those social relations and the resulting prevalence of a divided “we” in moral social groups. We argue that the social identity dynamics that arise can lead to competing obligations in a single group, and this has implications for the evolution of obligation.
Obligations without cooperation
Authors: Marshall Julia
Published: April 2020

Our sense of obligation is evident outside of joint collaborative activities. Most notably, children and adults recognize that parents are obligated to care for and love their children. This is presumably not because we think parents view their children as worthy cooperative partners, but because special obligations and duties are inherent in certain relational dynamics, namely the parent-child relationship.
Spatial and temporal variation in the migration of Ruddy-headed Goose in southern South America using satellite tagging
Authors: PEDRANA JULIETA , PÜTZ KLEMENS , BERNAD LUCÍA , MUÑOZ SEBASTIÁN , GOROSÁBEL ANTONELLA , CASTRESANA GABRIEL , LEISS ALEJANDRO , SECO PON JUAN PABLO
Published: April 2020

Ruddy-headed GooseChloephaga rubidicepsis the smallest of the five South American sheldgeese and has two separate populations: one sedentary, which resides in the Malvinas/Falkland Islands and one migratory that overwinters mainly in the Pampas region, Argentina and breeds in Southern Patagonia. The Ruddy-headed Goose’s continental population has decreased considerably, and recent estimates indicated that the population size is less than 800 individuals. In Argentina and Chile, this population is categorised as endangered. Understanding migration across vast landscapes is essential for the identification of factors affecting the survival of this endangered population and for the application of effective conservation measures. We aim to provide the first documentation of the complete migration cycle of Ruddy-headed Goose, and to analyse their annual migration in detail, including identification of stop-over, breeding and wintering sites, and to compare migration timing during spring and autumn migration. Adults were captured in the southern Pampas and equipped with solar satellite transmitters in 2015 and 2016. We analysed the influence of season (spring vs autumn migration) on the number and duration of stop-overs, distance travelled and overall migration speed using Generalized Linear Mixed Models. Our results showed that tracked geese used the eastern Patagonian route to reach their breeding grounds and take the same route after breeding. Spring migration was significantly faster than autumn migration, at least based on the number of days spent in their stop-overs. Stop-overs were closer to the final destination, either during spring and autumn migrations, though some of them were not used during subsequent migrations. Our migration cartography for Ruddy-headed Geese, together with the timing and location data, should be used to improve conservation efforts directed at this species and might contribute to the modification of the current status of ‘Least Concern’ under the IUCN criteria.
How does fire affect germination of grasses in the Cerrado?
Authors: Dairel Mariana , Fidelis Alessandra
Published: April 2020

Fire is a frequent disturbance in the Cerrado and is one of the major factors affecting vegetation structure and diversity. Fire events open gaps within the herbaceous layer and increase temperature fluctuation in the soil surface. In addition to being an important environmental filter for germination, fire is a germination cue for species with physiological dormancy. This study aimed to evaluate the germination of native grasses, using daily temperature fluctuations and heat shock to overcome physiological dormancy in native grasses. We also evaluated seed longevity after dispersal for some species. We conducted the daily temperature fluctuation experiments on seeds of ten native grass species, which were collected and then placed in germination chambers simulating thermal fluctuation throughout the day (19–55°C). We also subjected seeds to different heat-shock treatments: 100°C for 1 min, 100°C for 3 min and 200°C for 1 min. To determine seed longevity, we stored seeds for 6 and 12 months after collection and then set them to germinate (27°C, 12/12 h light). Non-germinated seeds from all experiments were tested for viability. Most species had low longevity and germination percentages. Those that had physiological dormancy were stimulated to germinate when exposed to temperature fluctuations. One species resisted temperatures up to 200°C. For all other species, neither treatment affected germination percentages. Our results indicate the importance of these environmental filters for seedling recruitment of these species, considering the low longevity and the presence of physiological dormancy.
CURCUMA CINNABARINA AND C. EBURNEA (ZINGIBERACEAE: ZINGIBEROIDEAE), TWO NEW SPECIES FROM THAILAND
Authors: Leong-Škorničková J. , Soonthornkalump S. , Suksathan P.
Published: April 2020

Curcuma cinnabarina and C. eburnea (Curcuma subg. Ecomatae, Zingiberaceae), two new species from Thailand, are described and illustrated here. They are compared with the morphologically closest species Curcuma rubrobracteata and C. pierreana, respectively. Detailed descriptions, colour plates, and information on their distribution, ecology, phenology and uses are also provided. Preliminary IUCN conservation assessments of these species are proposed.
Dietary lutein and zeaxanthin are associated with working memory in an older population
Authors: Zuniga Krystle E , Bishop Nicholas J , Turner Alexandria S
Published: April 2020

Objective:

The purpose of the study was to examine the association between dietary lutein and zeaxanthin (L + Z) intake and immediate word recall (IWR) and delayed word recall (DWR), and to identify the major contributors to dietary L + Z intake in a recent and representative sample of the older US population.

Design:

In this cross-sectional analysis, multivariate path analytic models estimated the association between L + Z consumption and cognitive performance while adjusting for covariates.

Setting:

Observations were drawn from the 2014 Health and Retirement Study, a nationally representative panel study of older US adults, and the 2013 Health Care and Nutrition Study, which assessed dietary intake via FFQ in a subsample of respondents.

Participants:

The analytic sample included 6390 respondents aged ≥50 years.

Results:

L + Z intake was 2·44 ± 2·32 mg/d on average, and L + Z intake differed significantly across quartiles (P < 0·001). For example, average L + Z intake in Q1 was 0·74 ± 0·23 mg/d and in Q4 was 5·46 ± 2·88 mg/d. In covariate adjusted models, older adults in the highest quartiles of L + Z intake had significantly greater IWR and DWR scores than those in the lowest quartile. Leafy vegetables, cruciferous vegetables, dark yellow vegetables, fish and seafood, legumes, eggs and fruit were significant and meaningful predictors of dietary L + Z intake.

Conclusion:

A high consumption of vegetables, fish and seafood, legumes, eggs and fruit is associated with a higher intake of L + Z and greater word recall among older adults.
The role of EU competition law in health care and the ‘undertaking’ concept
Authors: van de Gronden Johan W. , Guy Mary
Published: April 2020

Part of the controversy surrounding competition and health care stems from the complexity connected with delineating the applicability of competition law – encompassing both the provisions governing anticompetitive agreements and abuse of dominance and the state-aid rules. Cases determined at the European Union (EU) level within the past 30 years have developed a broad framework, and notable trends have emerged – for example, a distinction between health care providers and managing bodies (purchasers). The former have been subject to an ‘abstract’ test and the latter to a more sophisticated ‘concrete’ test. In this paper, we chart the development of the EU courts’ approach to developing the ‘undertaking’ concept in health care and examine the current EU competition law framework with a view to identifying future directions. van de Gronden has recently identified a ‘three-prong’ test of exemption from competition law in connection with the recent CEPPB case: firstly, where the supply of services is predominantly dependent upon public financing; secondly, the public funding aims to achieve a public interest goal and thirdly, the activities concerned are closely related to this public interest goal. We examine this test in a health care context, drawing on our findings regarding Dutch competition reforms.
Larger Drought and Flood Hazards and Adverse Impacts on Population and Economic Productivity Under 2.0 than 1.5°C Warming
Authors: Zhai Ran , Tao Fulu , Lall Upmanu , Fu Bojie , Elliott Joshua , Jägermeyr Jonas
Published: April 2020

Climate change may have major influences on surface runoff, which would consequently result in important implications for terrestrial ecosystems and human well‐being. At global scale there is limited understanding of these issues with respect to the warming targets stipulated in the Paris Agreement. Here we use a well‐established hydrological model (Variable Infiltration Capacity [VIC]) forced with a representative ensemble of latest climate projections from four global circulation models (GCMs) to estimate potential future changes in runoff and Terrestrial Ecosystem Water Retention (TEWR), as well as changes in extreme runoff and their impacts on population, and overall gross domestic product (GDP) worldwide. Results suggest that annual runoff generally would have larger increases, while annual TEWR generally would have larger decreases under the 2.0°C warming scenario as opposed to 1.5°C warming scenario. Global mean warming of 2°C versus 1.5°C would lead to more distinct spatial patterns in runoff change, with a general shift of the runoff distribution towards more extreme low runoff in Mexico, western United States, Western Europe, southeastern China, West Siberian Plain and more extreme high runoff in Alaska, northern Canada, and large parts of Asia. More people and GDP would be exposed to extreme low runoff decrease, extreme high runoff increase, extreme low runoff decrease as well as extreme high runoff increase under a higher warming scenario. This study differentiates hydrological impacts between the two warming scenarios and illustrates higher runoff, lower TEWR, larger potential drought and flood hazards and adverse impacts on population and GDP under 2°C than 1.5°C.
Conditions for Triggering Seismic Ruptures and/or Slow Slip Events in the Framework of a Poro‐Plastic Fault Zone Model
Authors: Maury V. , Piau J.‐M. , Fitzenz D.
Published: April 2020

Active fault zones are not simple frictional interfaces. They are complex, evolving 3‐D structures that contain pore fluids in drained or undrained conditions. They show stable or unstable slip, dilatant or contractant elastic or plastic local deformations in response to far‐field extensive or compressive displacements. Pore fluid pressure variations induce effective stress and fluid compressibility changes, possibly up to degassing. For these reasons, we choose to use an analytical model in which the fault zone is schematized by a mesoscale poroplastic interface surrounded by two symmetrical elastic pads to investigate the conditions that can lead to slow slip vs. seismic slip. The chosen end‐cap plastic failure criterion and associated flow rule account for hardening/softening regimes. The model computes stress paths, normal/tangential displacement, and fluid pressure variations of the fault zone with time. Depending on the initial stress, pore pressure conditions, far‐field loading rate, and fluid compressibility, scenarios emerge that link together stable plastic deformation regimes (months to years, small displacements) and unstable regimes (seconds, metric displacements). While some scenarios show the occurrence of instability preceded or not by slow slip events, others show slow events without instability (mainshock). Also investigated are the effect of a switch from undrained to drained condition and the role of the change in fluid compressibility due to dilatancy. Finally, we discuss the geodetic and geophysical data necessary to calibrate the parameters of the empirical relationships. Slow slip event areas are therefore not necessarily “safe” and might produce earthquakes if conditions change.
Understanding the Role of Nutrient Limitation on Plankton Biomass Over Arabian Sea Via 1‐D Coupled Biogeochemical Model and Bio‐Argo Observations
Authors: Anju M. , Sreeush M. G. , Valsala V. , Smitha B. R. , Hamza Faseela , Bharathi G. , Naidu C. V.
Published: April 2020

Arabian Sea (AS) is known to have seasonal phytoplankton blooms during winter and summer driven by dynamically distinct physical forcing mechanisms and associated nutrient dynamics. A 1‐D coupled physical‐biogeochemical model based on North Pacific Ecosystem Model for Understanding Regional Oceanography (NEMURO) with nitrogen and silicon cycles is adapted for the AS environment. The model is implemented to investigate the role of nitrogen (nitrate + ammonium) versus silicate limitation on plankton biomass. The seasonal cycle of plankton biomass is well simulated by the model along bio‐Argo (during a period from 2013 to 2016) and ship cruise tracks (for the single year 2009). Further, three sensitivity simulations are conducted by suppressing (1) nitrate availability (representing new production), (2) ammonium availability (representing regenerated production), and (3) silicate availability (for diatom production). The new production represents 80% of the total primary production in the AS and implicitly controls 70% of total zooplankton production annually. The regenerated production augments small phytoplankton (by ~50%; e.g., flagellates) and small zooplankton (by ~20%; e.g., ciliates) growth with negligible effects on large phytoplankton (e.g., diatom) and predatory zooplankton (e.g., copepods). The diatom production remains within the observed range due to silicate limitation which is fundamental in the model for realistic simulation of chlorophyll. Silicate is the primary limiting nutrient in diatom bloom in the subsurface chlorophyll maxima with maximum limitation occurring during the winter season, due to the deeper silicicline as compared to shallower nitricline. At the surface, both nitrogen and silicate co‐limit the total production; however, nitrogen is a stronger limiter than silicate from March to June. The study highlights the relative role of silicate versus total nitrogen (nitrate + ammonium) in limiting primary production in the AS.
Asymmetries in Snowfall, Emissivity, and Albedo of Mars' Seasonal Polar Caps: Mars Climate Sounder Observations
Authors: Gary‐Bicas C. E. , Hayne P. O. , Horvath T. , Heavens N. G. , Kass D. M. , Kleinböhl A. , Piqueux S. , Shirley J. H. , Schofield J. T. , McCleese D. J.
Published: April 2020

The stability of the residual carbon dioxide cap near the south pole of Mars is currently not well understood. The cap's survival depends on its radiation budget, controlled by the visible albedo and infrared emissivity. We investigated the role of CO2 snowfall in altering the albedo and emissivity, leading to the observed asymmetry in the net CO2 accumulation at the two poles. Uncontaminated snowfall increases albedo, and lowers emissivity, due to scattering by optically thick clouds and granular surface deposits. Data from the Mars Climate Sounder (MCS) show that fall and winter snowfall is correlated with higher springtime albedo at both poles. For the seasonal CO2 deposits in each polar region >60° latitude, we find mean albedo values of 0.39 in the north and 0.51 in the south, and winter 32‐μm emissivity values of 0.84 in the north and 0.87 in the south. Using a radiative transfer model and the MCS data, we find that the north polar deposits have ∼10× higher dust content than those in the south, explaining the ∼31% lower albedo of the north seasonal cap during spring. Our model shows that greater amounts of snowfall can explain the ∼4% lower emissivity of the north polar seasonal cap. These findings demonstrate that winter snowfall and dust transport affect the composition of Mars' seasonal ice caps and polar energy balance. Snowfall and dust loading are therefore important in modeling the CO2 cycle on Mars, as well as the planet's long‐term climate variations.
Geochemistry and Petrogenesis of Northwest Africa 10401: A New Type of the Mg‐Suite Rocks
Authors: Gross Juliane , Hilton Annette , Prissel Tabb C. , Setera Jacob B. , Korotev Randy L. , Calzada-Diaz Abigail
Published: April 2020

The petrogenetic models of the lunar crust are built on the returned Apollo and Luna samples collected from limited parts of the lunar nearside that are chemically unusual (i.e., material rich in K, Rare Earth Elements, and P [KREEP]) and not representative of the entire lunar lithologic suite. The lunar Mg‐suite is part of this sample collection and ubiquitously has geochemical characteristics indicating the involvement of KREEP in their petrogenesis and seemed to be linked to the Procellarum KREEP Terrain (PKT). However, it is unclear if KREEP is necessary for Mg‐suite magmatism or whether Mg‐suite magmatism was a global event that occurred without significant KREEP contribution, and thus, Mg‐suite rocks outside of the PKT region may exist without containing a significant KREEP signature. Here, we investigate lunar meteorite Northwest Africa (NWA) 10401, an anorthositic troctolitic breccia with a granulitic texture. NWA 10401 shares many characteristics of Apollo Mg‐suite rocks: both its bulk rock composition and alumina content, as well as its mineralogy and mineral chemistry, are more consistent with typical Apollo Mg‐suite rocks, rather than ferroan anorthosites. In addition, olivine‐spinel equilibria calculations indicate that NWA 10401 is consistent with being derived from a common parent to the Apollo Mg‐suite troctolites. However, despite these many shared characteristics, NWA 10401 is strongly depleted in REE, starkly separating it from the typical Apollo Mg‐suite of the PKT. This indicates that NWA 10401 (and pairs) could represent a Mg‐suite component outside the PKT, and thus, KREEP‐poor Mg‐suite magmatism may have been a global phenomenon on the Moon.
Interactions Between the Amazonian Rainforest and Cumuli Clouds: A Large‐Eddy Simulation, High‐Resolution ECMWF, and Observational Intercomparison Study
Authors: Vilà‐Guerau de Arellano J. , Wang X. , Pedruzo‐Bagazgoitia X. , Sikma M. , Agustí‐Panareda A. , Boussetta S. , Balsamo G. , Machado L. A. T. , Biscaro T. , Gentine P. , Martin S. T. , Fuentes J. D. , Gerken T.
Published: April 2020

The explicit coupling at meter and second scales of vegetation's responses to the atmospheric‐boundary layer dynamics drives a dynamic heterogeneity that influences canopy‐top fluxes and cloud formation. Focusing on a representative day during the Amazonian dry season, we investigate the diurnal cycle of energy, moisture and carbon dioxide at the canopy top, and the transition from clear to cloudy conditions. To this end, we compare results from a large‐eddy simulation technique, a high‐resolution global weather model, and a complete observational data set collected during the GoAmazon14/15 campaign. The overall model‐observation comparisons of radiation and canopy‐top fluxes, turbulence, and cloud dynamics are very satisfactory, with all the modeled variables lying within the standard deviation of the monthly aggregated observations. Our analysis indicates that the timing of the change in the daylight carbon exchange, from a sink to a source, remains uncertain and is probably related to the stomata closure caused by the increase in vapor pressure deficit during the afternoon. We demonstrate quantitatively that heat and moisture transport from the subcloud layer into the cloud layer are misrepresented by the global model, yielding low values of specific humidity and thermal instability above the cloud base. Finally, the numerical simulations and observational data are adequate settings for benchmarking more comprehensive studies of plant responses, microphysics, and radiation.
Impacts of Mixed‐Wettability on Brine Drainage and Supercritical CO2 Storage Efficiency in a 2.5‐D Heterogeneous Micromodel
Authors: Chang Chun , Kneafsey Timothy J. , Wan Jiamin , Tokunaga Tetsu K. , Nakagawa Seiji
Published: April 2020

Geological carbon storage (GCS) involves unstable drainage processes, the formation of patterns in a morphologically unstable interface between two fluids in a porous medium during drainage. The unstable drainage processes affect CO2 storage efficiency and plume distribution and can be greatly complicated by the mixed‐wet nature of rock surfaces common in hydrocarbon reservoirs where supercritical CO2 (scCO2) is used in enhanced oil recovery. We performed scCO2 injection (brine drainage) experiments at 8.5 MPa and 45°C in heterogeneous micromodels, two mixed‐wet with varying water‐ and intermediate‐wet patches, and one water‐wet. The flow regime changes from capillary fingering through crossover to viscous fingering in the micromodels of the same pore geometry but different wetting surfaces at displacement rates with logCa (capillary number) increasing from −8.1 to −4.4. While the mixed‐wet micromodel with uniformly distributed intermediate‐wet patches yields ~0.15 scCO2 saturation increase at both capillary fingering and crossover flow regimes (−8.1 ≤ logCa ≤  − 6.1), the one heterogeneous wetting to scCO2 results in ~0.09 saturation increase only at the crossover flow regime (−7.1 ≤ logCa ≤  − 6.1). The interconnected flow paths in the former are quantified and compared to the channelized scCO2 flow through intermediate‐wet patches in the latter by topological analysis. At logCa >  − 6.1 (near well), the effects of wettability and pore geometry are suppressed by strong viscous force. Both scCO2 saturation and distribution suggest the importance of wettability on CO2 storage efficiency and plume shape in reservoirs and capillary leakage through caprock at GCS conditions.
The Coronavirus Hurts Some of Science’s Most Vulnerable
Authors: Duncombe Jenessa
Published: April 2020

Early-career researchers hang in the balance of coronavirus uncertainty.
What Caused the Large‐Scale Heat Deficit in the Subtropical South Atlantic Ocean During 2009–2012?
Authors: Dong Shenfu , Lopez Hosmay , Lee Sang‐Ki , Meinen Christopher S. , Goni Gustavo , Baringer Molly
Published: April 2020

The subtropical South Atlantic hosts complex ocean circulation patterns and processes that transport heat to the North Atlantic, thereby playing an important role in global energy redistribution. This study uses several oceanic products to assess ocean heat changes in the subtropical South Atlantic and the associated atmosphere‐ocean processes. A particular focus is placed on the large heat deficit during 2009–2012, which is associated with cooling during 2008–2011 and subsequent warming. This heat deficit was largely driven by a sharp increase in the southward Ekman transport across 35°S during 2008–2011. The anomalous Ekman transport is connected to the persistent positive sea level pressure anomaly over the Atlantic sector of the Southern Ocean, caused by the Southern Annular Mode and the Pacific‐South American Modes. Although the overall correlations of these climate modes with the Ekman transport are modest during 1993–2016, the modes combined to produce large heat content anomalies during 2009–2012.