bluuebunny/crossref_metadata_2025_split huggingface dataset:
Palynofloral and Palynofacies Evidences and its Implication on the Depositional Environment from Wardha Valley Coalfield, Maharashtra
Authors: Murthy Srikanta , Sarate Omprakash S. , Aggarwal Neha 
Published: February 2019

Abstract
The palynological and palynofacies studies have been undertaken on the sub-surface sediments of borehole AK-19 from Asthona area of the Wardha coalfield, India. The present investigation has revealed the existence of two distinct palynological assemblages, which have been designated as palynoassemblage – I and II respectively. The former, has shown a predominance of monosaccates viz., Parasaccites, Plicatipollenites, Potonieisporites, and Crucisaccites, whereas, the latter is characterized by the dominance of striate bisaccates such as Faunipollenites and sub-dominance of non-striate bisaccate Scheuringipollenites along with other striate forms such as Striatopodocarpites, Crescentipollenites, and Rhizomaspora. The other genera recorded mainly includes Parasaccites, Indotriradites, and Callumispora, which suggests that primarily herbaceous and the arborescent plants where luxuriantly growing in the forest with the prevalence of hygrophilous and mesophilous environmental conditions. The recovered palynoassemblages are governed mainly by the gymnosperms such as glossopterids, conifers, and cordaites, etc., flourished in near shore areas in riverine, lacustrine conditions as well as in large swamps and marshy habitat with the prevalence of initially cold climatic conditions (Palynoassemblage-I) which later on became temperate (Palynoassemblage-II).
The present palynoassemblages have a closer affiliation with the known early Permian palynofloras of other Gondwana basins of India such as Umrer and Kamthi coalfields and Godavari, Damodar, Son-Mahanadi and Satpura basins. It can also be tentatively correlated with the early Permian palynoassemblages ofo South America, Antarctica, Australia, Africa and Salt range of Pakistan. Hence, Artinskian and Kungurian age (early Permian) has been assigned to the studied palynoassemblages respectively.
The study of organic matter has revealed three distinct palynofacies (I-III) which are characterized by the dominance of palynomorphs (Palynofacies-I), phytoclasts (Palynofacies-II) and biodegraded organic matter (Palynofacies-III) respectively. Palynofacies-I-III reflects the proximal fresh water settings; oxidizing fluvio-deltaic near shore conditions and distal dysoxic waterlogged settings respectively. Palynofacies-I and II represent the oxidizing conditions while Palynofacies-III represents the reducing conditions.
Studies on Toxicity of Fluoride and Impact of Endemic Fluorosis from Groundwater Resources of Bagalkot District, Karnataka – Geospatial Information System Approach
Authors: Gaonkar S. M. , Karabasannavar S. S. , Patil Venkanagouda B. B. , Kalashetty M. B. , Kalashetty B. M. 
Published: February 2019

Abstract
Fluorine is most electronegative element, never occurs in free state due to its high reactivity. In most of the places of the world drinking water from underground sources is invariably contaminated with fluoride. The concentration of fluoride according to the WHO standard allowed upper limit is 1.5 ppm whereas as per Indian standard, the allowed upper limit is 1.0 mg/litre. Fluoride ion gets contaminated in drinking water due to weathering of the soil and rocks and the groundwater sources of granite belt of Bagalkot district, contain much higher concentration of fluoride (up to 6 or 7 ppm). In this survey it is found that the concentration of fluoride even at 1.34 ppm has caused tooth decay with the permanent brown scales on the teeth.
Weighted averages of n-convex functions via extension of Montgomery’s identity
Authors: Khan Asif R. , Pečarić Josip E. , Praljak Marjan 
Published: February 2019

Abstract
Using an extension of Montgomery’s identity and the Green’s function, we obtain new identities and related inequalities for weighted averages of n-convex functions, i.e. the sum $$\sum _{i=1}^m \rho _i h(\lambda _i)$$

∑

i
=
1

m

ρ
i

h

(

λ
i

)

and the integral $$\int ^{b}_{a} \rho (\lambda ) h(\gamma (\lambda ))d\lambda $$

∫
a
b

ρ

(
λ
)

h

(
γ

(
λ
)

)

d
λ

where h is an n-convex function.
Dietary trends from 1950 to 2010: a Dutch cookbook analysis
Authors: Buisman Marjolein E. , Jonkman Jochem 
Published: February 2019

AbstractDietary trends and changing lifestyle patterns have been associated with the increasing occurrence of obesity in the Western world. These dietary trends are commonly studied using longitudinal food consumption surveys. An alternative to studying changes in eating behaviour may be found in recipe analysis of traditional cookbooks. Few such studies exist, however, and it is unclear whether dietary trends over time can be identified this way. The present paper analyses full-meal recipes from a traditional Dutch cookbook between 1950 and 2010. The selected recipes show an increase in energy density. Additionally, the protein weight per kcal increased. In general, the observed trends are similar to those identified by the Dutch National Food Consumption Survey. The analysis therefore suggests that traditional cookbooks can be used as an indicator to identify dietary trends over time, although further studies are necessary to support this hypothesis.
On isolated millisecond pulsars formed by the coalescence of neutron stars and massive white dwarfs
Authors: Sun Shengnan , Li Lin , Liu Helei , Lü Guoliang , Wang Zhaojun , Zhu Chunhua 
Published: February 2019

Abstract
This paper uses population synthesis to investigate the possible origin of isolated millisecond pulsars as born from the coalescence of a neutron star and a white dwarf. Results show that the galactic birth rate of isolated millisecond pulsars is likely to lie between 5.8×10−5 yr−1 and 2.0×10−4 yr−1, depending on critical variables, such as the stability of mass transfer via the Roche lobe and the value of kick velocity. In addition to this, this paper estimates that the solar mass of isolated millisecond pulsars can range from 1.5 and 2.0 Mʘ, making them more massive than other ‘normal’ pulsars. Finally, the majority of isolated millisecond pulsars in our simulations have spin periods ranging from several to 20 ms, which is consistent with previous observations.
Is Coming into Existence Always a Harm? Qoheleth in Dialogue with David Benatar
Authors: Peterson Jesse M. 
Published: February 2019

AbstractContemporary philosopher David Benatar has advanced the self-evidently controversial claim that “coming into existence is always a harm.” Benatar’s argument turns on the basic asymmetry between pleasure and pain, an asymmetry he seeks to explain by the principle that those who never exist cannot be deprived. Benatar’s import is almost incredible: humans should cease to procreate immediately, thereby engendering the extinction of the species—a view known as “anti-natalism.” According to many of his readers, the ancient Hebrew sage Qoheleth expresses a pessimistic nihilism that runs as thick as Benatar’s.Prima faciegrounding for this assertion is that Qoheleth, like Benatar, raises the issue of whether coming into existence may be a harm—and gives an affirmative answer. In two passages, Eccl 6:1–6 and 4:1–3, Qoheleth declares that an unborn hypothetical person is “better off” than their existent counterpart. Yet the meaning and implication of these words is far from obvious. Does Qoheleth imply that the non-exister’s state, and non-existence in general, is universally superior to existence? Or is he instead speaking exceptionally, of particular persons in rare circumstances? By examining the two “better”-statements in their literary context, I will argue that Qoheleth intends these examples as exceptions. He does not go so far as to make the supremely nihilistic claim that coming into existence is always, or even generally, a net harm; yet, he does concede that in certain cases, it can be. Beyond this, I will explore how the two thinkers’ divergent conclusions can be traced to a deeper difference of philosophical method. This question concerning non-existence opens a window to Qoheleth’s broader scheme of values and therefore serves as a surprisingly useful entry point by which to engage his philosophy. The paper utilizes the methodology Jaco Gericke has recently termed “philosophical criticism,” but specifically applied to Qoheleth.
The relationship between parasite virulence and environmental persistence: a meta-analysis
Authors: Rafaluk-Mohr Charlotte 
Published: February 2019

AbstractWhy some parasites evolve and maintain extreme levels of virulence is a question that remains largely unanswered. A body of theory predicts that parasites that form long-lived spores able to persist in the environment evolve higher virulence, known as the sit and wait hypothesis. Such parasites can obliterate their local host population and wait in the environment for further hosts to arrive, reducing some of the costs of high virulence. On the other hand, some models predict the opposite to be true, that virulence and environmental persistence are both costly and traded off, the resource allocation hypothesis. I conducted a meta-analysis on published data on the relationship between environmental persistence and virulence collected to date. I first examined all data available to date and then conducted a smaller analysis focussing on just those studies testing the specific predictions of the sit and wait hypothesis. Empirical work supports both hypotheses; however, the direction of the effect is largely associated with parasite type. In both analyses, viruses tend to show evidence of resource allocation trade-offs, these traits are positively correlated in bacterial and fungal parasites.
Empire as a Subject for Philosophy (Polis, Imperium, Cosmopolis)
Authors: Alexander James 
Published: February 2019

AbstractIn order to consider the question of whether empire is a subject for philosophy, I do three things. I sketch an original typology of three types of state, which I call polis, imperium and cosmopolis, in order to show that the second is an important philosophical conception which lies behind the terminology of empire and imperialism. I also consider modern theories of empire and imperialism in order to indicate some of their limitations as theories. And finally I indicate that it is important even for philosophers to recognise that all imperial terminology emerges out of a very complicated history in which the concept of imperium has been extended and distorted in meaning, so that, at best, any good theory of empire or imperialism can only be some sort of recapitulation of that history. Neither the second nor the third of these claims undermines the claim of imperium to be a concept of the state which is of great political and philosophical significance.
International Polar Week as an educational activity to boost science–educational links: Portugal as a case study
Authors: Xavier José C. , Azinhaga Patrícia Fialho , Seco José , Fugmann Gerlis 
Published: February 2019

AbstractInternational Polar Week is an educational activity that has been carried out since the International Polar Year 2007–2008 (known then as International Polar Days). This event, which brings together educators and polar scientists to promote polar science, is generally organised by the Association of Polar Early Career Scientists and Polar Educators International. Here we provide an overview of how International Polar Week started, and describe its implementation in Portugal, a “non-polar” country. We quantify the activities carried out during International Polar Weeks in Portugal between 2012 and 2017, which involved &gt;96,000 students, &gt;200 schools, &gt;1900 educators and 100 polar scientists, with talks and Skype calls by polar scientists being the most frequent activities. Portugal’s International Polar Weeks have involved students, educators and polar scientists from 18 other countries, in particular from the United Kingdom and Brazil. We conclude by providing recommendations to other countries wanting to implement International Polar Weeks.
Conversion efficiency of even harmonics of whistler pulse in quantum magnetoplasma
Authors: Kumar Punit , Singh Shiv , Ahmad Nafees 
Published: February 2019

AbstractStudy of even harmonic generation resulting from propagation of whistler pulse in homogeneous high-density quantum plasma immersed in an externally applied magnetic field, using the recently developed quantum hydrodynamic model is presented. The effects of quantum Bohm potential, quantum statistical pressure, and electron spin have been taken into account. The field amplitude of even harmonic of the whistler with respect to fundamental wave and the conversion efficiency for phase-mismatch has been analyzed. The conversion efficiency of harmonic radiation depends on the plasma electron density, magnetic field strength as well as the intensity of whistler pulse. The efficiency increases significantly with an increase in plasma density, magnetic field and whistler wave intensity. Higher conversion efficiency is observed in degenerate plasma for lower values of the static magnetic field as compared with classical plasma.
Revisiting Islamic Laws of Istiḥāḍa
Authors: MAZUZ HAGGAI 
Published: February 2019

AbstractThe Islamic laws pertaining to mustḥāḍa—women who have dysfunctional uterine bleeding (istiḥāḍa)—have been overlooked in the research literature. This article reopens the research discourse on this topic by discussing two related questions: may a mustḥāḍa perform religious obligations and may she have sexual intercourse? The questions are shown to be somewhat related. It is found that jurists conceded the right of a mustḥāḍa to pray but disagreed about why—implying, contrary to previous scholarship, that Islam accommodates different levels of ritual impurity—and that they held divergent views on her having intercourse. By probing and investigating Islamic legal sources, it is shown that research assertions about istiḥāḍa thus far require circumscription and re-examination.
Elevated Diapycnal Mixing by a Subthermocline Eddy in the Western Equatorial Pacific
Authors: Zhang Zhiwei , Liu Zhiyu , Richards Kelvin , Shang Gong , Zhao Wei , Tian Jiwei , Huang Xiaodong , Zhou Chun 
Published: February 2019

AbstractDiapycnal mixing plays an important role in modulating upper‐ocean heat content of the western equatorial Pacific (WEP) that profoundly impacts the global climate. Given the sparsity of long‐term in situ observations, the mechanisms driving thermocline mixing in the WEP remain poorly understood. Here, based on yearlong mooring measurements in the WEP, we first report that the occurrence of shear instability was significantly enhanced by an anticyclonic subthermocline eddy (STE). As a result of strong subinertial velocity shear and weakened stratification associated with the STE, the Richardson number was decreased below 1/4 and the estimated diapycnal diffusivity was increased by 400%. Moreover, contrary to surface‐intensified anticyclonic eddies, the STE appeared to act as a dynamic barrier for downward penetration of wind‐generated near‐inertial energy, which may also fertilize mixing near the upper thermocline. Given the frequent occurrence of STEs, they may play a pivotal role in driving thermocline mixing in the WEP.
The Dominant Role of Extreme Precipitation Events in Antarctic Snowfall Variability
Authors: Turner John , Phillips Tony , Thamban Meloth , Rahaman Waliur , Marshall Gareth J. , Wille Jonathan D. , Favier Vincent , Winton V. Holly L. , Thomas Elizabeth , Wang Zaomin , van den Broeke Michiel , Hosking J. Scott , Lachlan‐Cope Tom 
Published: February 2019

AbstractAntarctic snowfall consists of frequent clear‐sky precipitation and heavier falls from intrusions of maritime airmasses associated with amplified planetary waves. We investigate the importance of different precipitation events using the output of the RACMO2 model. Extreme precipitation events consisting of the largest 10% of daily totals are shown to contribute more than 40% of the total annual precipitation across much of the continent, with some areas receiving in excess of 60% of the total from these events. The greatest contribution of extreme precipitation events to the annual total is in the coastal areas and especially on the ice shelves, with the Amery Ice Shelf receiving 50% of its annual precipitation in less than the 10 days of heaviest precipitation. For the continent as a whole, 70% of the variance of the annual precipitation is explained by variability in precipitation from extreme precipitation events, with this figure rising to over 90% in some areas.
Reconciling Canopy Interception Parameterization and Rainfall Forcing Frequency in the Community Land Model for Simulating Evapotranspiration of Rainforests and Oil Palm Plantations in Indonesia
Authors: Fan Yuanchao , Meijide Ana , Lawrence David M. , Roupsard Olivier , Carlson Kimberly M. , Chen Hsin‐Yi , Röll Alexander , Niu Furong , Knohl Alexander 
Published: February 2019

AbstractBy mediating evapotranspiration processes, plant canopies play an important role in the terrestrial water cycle and regional climate. Substantial uncertainties exist in modeling canopy water interception and related hydrological processes due to rainfall forcing frequency selection and varying canopy traits. Here we design a new time interpolation method “zero” to better represent convective‐type precipitation in tropical regions. We also implement and recalibrate plant functional type‐specific interception parameters for rainforests and oil palm plantations, where oil palms express higher water interception capacity than forests, using the Community Land Model (CLM) versions 4.5 and 5.0 with CLM‐Palm embedded. Reconciling the interception scheme with realistic precipitation forcing produces more accurate canopy evaporation and transpiration for both plant functional types, which in turn improves simulated evapotranspiration and energy partitioning when benchmarked against observations from our study sites in Indonesia and an extensive literature review. Regional simulations for Sumatra and Kalimantan show that industrial oil palm plantations have 18–27% higher transpiration and 15–20% higher evapotranspiration than forests on an annual regional average basis across different ages or successional stages, even though the forests experience higher average precipitation according to reanalysis data. Our land‐only modeling results indicate that current oil palm plantations in Sumatra and Kalimantan use 15–20% more water (mean 220 mm or 20 Gt) per year compared to lowland rainforests of the same extent. The extra water use by oil palm reduces soil moisture and runoff that could affect ecosystem services such as productivity of staple crops and availability of drinking water in rural areas.
Does Surface Temperature Respond to or Determine Downwelling Longwave Radiation?
Authors: Vargas Zeppetello L. R. , Donohoe A. , Battisti D. S. 
Published: February 2019

AbstractDownward longwave radiation (DLR) is often assumed to be an independent forcing on the surface energy budget in analyses of Arctic warming and land‐atmosphere interaction. We use radiative kernels to show that the DLR response to forcing is largely determined by surface temperature perturbations. We develop a method by which vertically integrated versions of the radiative kernels are combined with surface temperature and specific humidity to estimate the surface DLR response to greenhouse forcing. Through a decomposition of the DLR response, we estimate that changes in surface temperature produce at least 63% of the clear‐sky DLR response in greenhouse forcing, while the changes associated with clouds account for only 11% of the full‐sky DLR response. Our results suggest that surface DLR is tightly coupled to surface temperature; therefore, it cannot be considered an independent component of the surface energy budget.
Quantifying population-specific growth in benthic bacterial communities under low oxygen using H218O
Authors: Coskun Ömer K , Özen Volkan , Wankel Scott D , Orsi William D 
Published: February 2019

Abstract
The benthos in estuarine environments often experiences periods of regularly occurring hypoxic and anoxic conditions, dramatically impacting biogeochemical cycles. How oxygen depletion affects the growth of specific uncultivated microbial populations within these diverse benthic communities, however, remains poorly understood. Here, we applied H218O quantitative stable isotope probing (qSIP) in order to quantify the growth of diverse, uncultured bacterial populations in response to low oxygen concentrations in estuarine sediments. Over the course of 7- and 28-day incubations with redox conditions spanning from hypoxia to euxinia (sulfidic), 18O labeling of bacterial populations exhibited different patterns consistent with micro-aerophilic, anaerobic, facultative anaerobic, and aerotolerant anaerobic growth. 18O-labeled populations displaying anaerobic growth had a significantly non-random phylogenetic distribution, exhibited by numerous clades currently lacking cultured representatives within the Planctomycetes, Actinobacteria, Latescibacteria, Verrucomicrobia, and Acidobacteria. Genes encoding the beta-subunit of the dissimilatory sulfate reductase (dsrB) became 18O labeled only during euxinic conditions. Sequencing of these 18O-labeled dsrB genes showed that Acidobacteria were the dominant group of growing sulfate-reducing bacteria, highlighting their importance for sulfur cycling in estuarine sediments. Our findings provide the first experimental constraints on the redox conditions underlying increased growth in several groups of “microbial dark matter”, validating hypotheses put forth by earlier metagenomic studies.
Targeted Next Generation Sequencing to study insert stability in genetically modified plants
Authors: Boutigny Anne-Laure , Barranger Audrey , De Boisséson Claire , Blanchard Yannick , Rolland Mathieu 
Published: February 2019

AbstractThe EU directive 2001/18/EC requires any genetically modified (GM) event to be stable. In the present work, a targeted Next-Generation Sequencing (NGS) approach using barcodes to specifically tag each individual DNA molecules during library preparation was implemented to detect mutations taking into account the background noise due to amplification and sequencing errors. The method was first showed to be efficient in detecting the mutations in synthetic samples prepared with custom-synthesized mutated or non-mutated P35S sequences mixed in different proportions. The genetic stability of a portion of the P35S promoter targeted for GM detection was then analyzed in GM flour samples. Several low frequency mutations were detected in the P35S sequences. Some mutated nucleotides were located within the primers and probes used in the P35S diagnostic test. If present not as somatic mutations but as the consensus sequence of some individuals, these mutations could influence the efficiency of the P35S real time PCR diagnostic test. This methodology could be implemented in genetic stability studies of GM inserts but also to detect single nucleotide mutant GM plants produced using “new breeding techniques”.