bluuebunny/crossref_metadata_2025_split huggingface dataset:
Deconstructing an Ediacaran frond: three-dimensional preservation of Arborea from Ediacara, South Australia
Authors: Laflamme Marc , Gehling James G. , Droser Mary L. 
Published: March 2018

AbstractExquisitely preserved three-dimensional examples of the classic Ediacaran (late Neoproterozoic; 570–541 Ma) frond Charniodiscus arboreus Jenkins and Gehling, 1978 (herein referred to as Arborea arborea Glaessner in Glaessner and Daily, 1959) are reported from the Ediacara Member, Rawnsley Quartzite of South Australia, and allow for a detailed reinterpretation of its functional morphology and taxonomy. New specimens cast in three dimensions within sandy event beds showcase detailed branching morphology that highlights possible internal features that are strikingly different from rangeomorph and erniettomorph fronds. Combined with dozens of well-preserved two-dimensional impressions from the Flinders Ranges of South Australia, morphological variations within the traditional Arborea morphotype are interpreted as representing various stages of external molding. In rare cases, taphomorphs (morphological variants attributable to preservation) represent composite molding of internal features consisting of structural supports or anchoring sites for branching structures. Each primary branch consists of a central primary branching stalk from which emerge several oval secondary branches, which likely correspond to similar structures found in rare two-dimensional specimens. Considering this new evidence, previous synonymies within the Arboreomorpha are no longer justified, and we suggest that the taxonomy of the group be revised.
IntCal, SHCal, or a Mixed Curve? Choosing a14C Calibration Curve for Archaeological and Paleoenvironmental Records from Tropical South America
Authors: Marsh Erik J , Bruno Maria C , Fritz Sherilyn C , Baker Paul , Capriles José M , Hastorf Christine A 
Published: March 2018

AbstractBecause the14C calibration curves IntCal and SHCal are based on data from temperate latitudes, it remains unclear which curve is more suitable for archaeological and paleoenvironmental records from tropical South America. A review of climate dynamics reveals a significant influx of Northern Hemisphere air masses and moisture over a substantial part of the continent during the South American Summer Monsoon (SASM). Areas affected by the SASM receive unknown amounts of input from both hemispheres, where an argument could be made for either curve. Until localized tree-ring data can resolve this, we suggest using a mixed calibration curve, which accounts for inputs from both hemispheres, as a third calibration option. We present a calibration example from a crucial period of environmental and cultural change in the southern Lake Titicaca. Given our current lack of data on past ∆14C variation in South America, our calibrations and chronologies will likely change in the future. We hope this paper spurs new research into this topic and encourages researchers to make an informed and explicit choice of which curve to use, which is particularly relevant in research on past human–environmental relationships.
REDUCING NITROGEN LOSSES AND INCREASING MAIZE PRODUCTIVITY IN ORGANIC MANURES-AMENDED SOILS BY INCREASING THE RIDGE TO FURROW PROPORTION
Authors: IQBAL SHAHID , ARIF MUHAMMAD , THIERFELDER CHRISTIAN , YASMEEN TAHIRA , LI TANG 
Published: March 2018

SUMMARYNitrogen (N) losses greater than 40% in furrow-irrigated cropping systems are a common problem that substantially limits yields. Sustainable production methods are therefore required to reduce these losses and increase the yield under semi-arid conditions. A field trial was carried out to study the soil N dynamics and soil physicochemical properties in soils amended with organic manure (i.e. with poultry manure (PM), farmyard manure (FYM) and pressmud compost (PrM)). Soil N dynamics and properties were evaluated under different ridge to furrow ratios (1:1 and 2:1) as well as maize yield and profitability. When ridge to furrow ratio increased (2:1) in soils amended with PM, the inorganic and organic N status was increased and N losses were reduced. This strategy lowered soil pH, and maximized organic matter status and maize yield. The highest yield, net income and benefit–cost ratio were attained with 2:1 ridge to furrow ratio and PM amendment, being an alternative management for increasing maize productivity and profitability while improving nutrient use efficiency.
Early sowing increases nitrogen uptake and yields of winter wheat grown with cattle slurry or mineral fertilizers
Authors: Suarez-Tapia A. , Rasmussen J. , Thomsen I. K. , Christensen B. T. 
Published: March 2018

AbstractThe current study evaluated the effect of sowing date (early, mid-August or timely, mid-September) on two winter wheat (Triticum aestivumL.) cultivars (Hereford, Mariboss) with different rates of nitrogen (N) (0–225 kg total N/ha) applied as animal manure (AM; cattle slurry) or mineral fertilizers (N: phosphorus: potassium; NPK). Overwinter plant N uptake and soil mineral N content were determined during 2014/15, while harvest yields (grain, straw, N content) were determined during 2014/15 and 2015/16. Overwinter uptake of N was 14 kg N/ha higher in early than in timely-sown wheat. Despite very different yield levels in 2015 and 2016 harvests, the advantage of early sowing on grain yields was similar (1.1 and 0.9 t/ha); straw yield benefits were greater in 2015 (1.7 t/ha more) than in 2016 (0.4 t/ha more). In 2015 and 2016, N offtake was 35 and 17 kg N/ha higher in early than in timely-sown wheat, respectively. The mineral N fertilizer value of cattle slurry averaged 50%. Early sowing increased the apparent N recovery (ANR) for wheat regardless of nutrient source. However, ANR was substantially higher for NPK (82% in 2015; 52% in 2016) than for AM (39% in 2015; 27% in 2016). Performance of the two cultivars did not differ consistently with respect to the effect of early sowing on crop yield, N concentration and offtake, or ANR. Within the north-west European climatic region, moving the sowing time of winter wheat from mid-September to mid-August provides a significant yield and N offtake benefit.
C=f(P): The trust, ‘general public utility’, and charity as a function of profit in India
Authors: BIRLA RITU 
Published: March 2018

AbstractWith an interest in historicizing contemporary philanthropic formations such as corporate social responsibility, this article outlines the modern Indian governmental coding of charity as a function of profit. To do so, it charts a trajectory of legal-fiscal policy on charitable tax exemption in India, especially since the 1940s. Informed by the study of vernacular capitalism, research on economization and on epistemologies of calculation, the analysis maps juridical trajectories on the idea of charity, its relationship with trade, and, more specifically, profit-making. It demonstrates how the legal mechanism of the public trust, which serves in the late nineteenth century to institutionalize a strict distinction and separation between charity and profit-making, later reconfigures and connects them by buttressing the main legal criterion for charity in India, that is, ‘general public utility’. This legal story is deployed to draw attention to philanthropy more broadly as a key terrain for research on processes of economization and neoliberal governing. At the same time, the argument also works against the grain of palimpsests in contemporary public discourse which stage a continuous and direct line from pre-colonial vernacular practices to Indian philanthropy today.
Receipts and Other Forms of Islamic Charity: Accounting for piety in modern North India
Authors: TAYLOR CHRISTOPHER B. 
Published: March 2018

AbstractIslamic almsgiving is on the rise among Muslims in India, as charitable donations by individuals come to supplant landed endowments as the lifeblood of many Islamic associations. Techniques of mass fundraising in India by Islamic revivalist movements such as Deoband facilitated their expansion across the subcontinent. Such fundraising depended on documentary practices such as verification letters, lists of donors, and receipts for donations. This article illustrates how charity receipts and other documents that change hands in ritual Islamic almsgiving are also a key part of new Indian Muslim collective identities. Moral ties as well as money circulate in this Islamic charity economy. Financial documents are Islamic philanthropy's answer to ‘print capitalism’, serving as material rituals of symbolic community across vast distances. Moreover, the use of documents in traditional Islamic almsgiving is also inflecting pious Muslims’ spiritualities. Islamic charity receipts in particular are contributing to the individualization of religiosity among Lucknow Muslims. New modes of accounting (originally intended to ensure financial compliance) also allow Muslim almsgivers to ‘account’ for accrued piety in a perceived spiritual merit economy.
Ungiven: Philanthropy as critique
Authors: BANERJEE DWAIPAYAN , COPEMAN JACOB 
Published: March 2018

AbstractDrawing on field research principally from contexts of medical blood donation in North India, this article describes how gifts that are given often critique—by obviation—those that remain ungiven: the care not provided by the Indian state for Bhopal survivors, the family members unwilling to donate blood for their transfusion-requiring relative, and so on. In this way, giving can come to look like a form of criticism. The critiques that acts of giving stage are of absences and deficits: we present cases where large paper hearts donated by survivors of the 1984 Bhopal Gas Disaster to the prime minister of India signal his lack of one, where donated human blood critiques others' unwillingness to do so, where acts of blood donation critique and protest communal violence, and where similar acts of giving over simultaneously highlight a deficit in familial affects and an attempt to resuscitate damaged relational forms. We thus illustrate how critique can operate philanthropically by way of partonomic relations between the given and not-given.
Imitation, Then and Now: On the emergence of philanthropy in early colonial Calcutta
Authors: HATCHER BRIAN A. 
Published: March 2018

AbstractThe goal of this article is to provide conceptual and historical orientation useful for thinking about the emergence of philanthropy in modern South Asia. Conceptually, the article suggests the need to approach the expression of philanthropy in early colonial Bengal in terms of processes of imitation. To do so, we must overcome the stigma attached to the idea of imitation within both nationalist and post-colonial thought. In the particular context of early colonial Calcutta, local actors entered into intimate relationships with Europeans and these relationships provided occasions to borrow, translate, and retool a range of ideas and practices relevant to new modes of public charity. The importance of attending to historical context is suggested by reading such early colonial developments against the grain of late nineteenth-century perspectives—a time when Bengalis grew anxious about cultural imitation. Rather than deferring to these late-colonial anxieties over imitation, we need to situate them within a critically informed historical framework. To do this, the present article draws on the writings of the Brāhmo intellectual Rajnarain Bose, who pondered the relationship between an earlier colonial moment (‘then’) and his own late-colonial ‘now’. Close reading of Bose allows us to plumb the nature of late-colonial anxiety about cultural borrowing while opening up a new perspective on imitation and intimacy in early colonial Bengal that is not predicated on the teleology of the late-colonial modern.
Good Deeds: Parsi trusts from ‘the womb to the tomb’
Authors: VEVAINA LEILAH 
Published: March 2018

AbstractParsis (Indian Zoroastrians), a small traditionally endogamous group, are well known in India for their philanthropic giving. The Parsis of Mumbai are beneficiaries of hundreds of Parsi public charitable trusts today, and this article will show how trusts, as particular forms of giving, establish perpetual communal obligation connecting the past and present. It will show how the circulation of personal assets through customary inheritance within a family is replaced by the trust with the circulation of communal obligations in perpetuity. While this mechanism of giving has a marked endurance, what has changed is what constitutes ‘the good’ within these deeds. Moving away from traditional philanthropic practices of subsidizing education, medical care, and welfare to the poor, the focus of giving has shifted to the pursuit of communal reproduction, both biological and social.
Efficient Donors, Meritorious Receivers: Professionalizing transnational philanthropy in coastal Andhra
Authors: ROOHI SANAM 
Published: March 2018

Abstract‘High skilled’ Kamma migrants from Coastal Andhra domiciled in the USA maintain strong ties with their villages and towns of origin. Since the 1990s, one key way in which they have sustained relations with their roots is through transnational philanthropy. Over the last two decades, migrant donors have diversified the modalities of their philanthropic engagements, increasingly institutionalizing them through US-based transnational associations. While the institutionalization of philanthropy may appear to be an import from the USA, closer examination reveals its historical antecedent in the caste-basedVaraalusystem practised by the Kammas during the late colonial period. The transnationalization of older forms of giving are marked by key modifications in the way giving is conceptualized—from being localized, need based, and individualized to being based on merit, efficiency, and professionalization. The term ‘donation’ is used to describe their philanthropy, rather thandaanor charity, and the politics of semantics points to the modernizing impulse within the community to transcend caste owing to their diasporic location. Yet, by aiming to reachdeservingbeneficiaries while upholding meritocracy, donors often circulate philanthropic resources horizontally on a caste inflected and highly politicized transnational plane. The discourse and practices of transnational giving in post-reform India bring out the contradiction that simultaneously obscures the workings of a caste while transnationalizing its boundaries.
Gurusand Gifting:Dana, themathreform campaign, and competing visions of Hindusangathanin twentieth-century India
Authors: KASTURI MALAVIKA 
Published: March 2018

AbstractFrom the early twentieth century, Hindu socio-religious and political bodies debated the use thatmaths(monastic establishments) made of their wealth, amassed in large part throughdana(socio religious gifts). From the early nineteenth century, Anglo Hindu law on inheritance, and thereafter the Religious and Charitable Endowments Acts, had enabled the autonomy ofmathsby classifying them as private religious corporations, not charitable endowments. This article suggests that themathreform campaign between 1920 and 1940 in north India was impelled by the preoccupations of heterogeneous Hindu political and socio-religious organizations withdanaand its potential to fund cultural and political projects regenerating an imagined Hindu socio-religious community. Specifically, the Hindu Mahasabha yokeddanato its Hindusangathan(unity) campaign to strategically craft an integrated ‘Hindu public’ transcendingsampraday(religious traditions) to protect its interests from ‘external enemies’. My discussion probes how the Hindu Mahasabha and its ‘reformist’ allies urged the conversion ofmathsinto public charitable trusts, or endowments accountable to an ephemeral ‘Hindu public’ and the regulation of their expenditure. Monastic orders,guru-based associations like the Bharat Dharma Mahamandala, and the majority of orthodox Hindus successfully opposed this campaign, defending the interests ofmathsandsampradaybefore and after independence. In so doing, they challenged Hindusangathanby articulating alternative visions of the socio-religious publics and communities to be revitalized through philanthropy. Through this discussion, the article charts the uneasy relationship between monasticism and an emerging Hindu nationalist cultural and political consciousness that remained fractured and internally contested.
The role of spore morphology in horizontal transmission of a microsporidium of Daphnia
Authors: Urca Hadas , Ben-Ami Frida 
Published: March 2018

AbstractThe microsporidian parasite Hamiltosporidium tvaerminnensis can infect Daphnia magna both horizontally (through environmental spores) and vertically (through parthenogenetic and sexually produced eggs). The spores of H. tvaerminnensis come in three distinguishable morphologies, which are thought to have different roles in the transmission of the parasite. In this study, we examined the role of the two most common spore morphologies (i.e. oval-shaped spores and pear-shaped spores) in horizontal transmission of H. tvaerminnensis. To this end, we infected hosts with solutions consisting of either mostly oval- or mostly pear-shaped spores, and quantified infection rates, parasite-induced host mortality and mean number of parasite spores produced per host. We found that spore morphology by itself did not influence infection rates and parasite-induced host mortality. Instead, host clone and parasite isolate interacted with spore morphology in shaping infection outcome and mortality. Thus, there appear to be strong genotype-by-genotype (G × G) interactions in this system. While there is no dispute that H. tvaerminnensis can transmit both vertically and horizontally, our findings do not support theoretical predictions that different spore morphologies hold different roles in horizontal transmission of H. tvaerminnensis.
Activity space-based measures of the food environment and their relationships to food purchasing behaviours for young urban adults in Canada
Authors: Widener Michael J , Minaker Leia M , Reid Jessica L , Patterson Zachary , Ahmadi Tara Kamal , Hammond David 
Published: March 2018

AbstractObjectiveTo examine the potential links between activity spaces, the food retail environment and food shopping behaviours for the population of young, urban adults.DesignParticipants took part in the Canada Food Study, which collected information on demographics, food behaviour, diet and health, as well as an additional smartphone study that included a seven-day period of logging GPS (global positioning system) location and food purchases. Using a time-weighted, continuous representation of participant activity spaces generated from GPS trajectory data, the locations of food purchases and a geocoded food retail data set, negative binomial regression models were used to explore what types of food retailers participants were exposed to and where food purchases were made.SettingToronto, Montreal, Vancouver, Edmonton and Halifax, Canada.SubjectsYoung adults aged 16–30 years (n496). These participants were a subset of the larger Canada Food Study.ResultsDemographics, household food shopper status and city of residence were significantly associated with different levels of exposure to various types of food retailers. Food shopping behaviours were also statistically significantly associated with demographics, the activity space-based food environment, self-reported health and city of residence.ConclusionsThe study confirms that food behaviours are related to activity space-based food environment measures, which provide a more comprehensive accounting of food retail exposure than home-based measures. In addition, exposure to food retail and food purchasing behaviours of an understudied population are described.
Moore's Law: A Review of Feature Size Shrinkage and its Effect on Microscopy in the Semiconductor Industry
Authors: Mardinly John 
Published: March 2018

Summary
In 1965, Gordon Moore predicted that the number of components in an integrated circuit would double every year. The drive for higher performance with greater economy has been a major factor in the pursuit of Moore's Law. Device scaling is expected to continue without interruption, and products manufactured using a nominal 22nm feature size should become commercially available by the year 2011. This article will detail the technology enablers that make Moore's Law possible, and the improvements in microscopy techniques required to meet the challenges that Moore's Law presents.
Resolution and Sampling in Digital Imaging
Authors: Dobbie Ian 
Published: March 2018

Abstract
As nearly all imaging has moved from analogue media such as photographic film into digital image files it has become vital to understand how resolution and digital sampling affect the information contained in these images. This article is a basic introduction to the important concepts and how they should be applied, using general assumptions, rather than a rigorous mathematical approach. The focus is on optical microscopy although the essentials are the same for any digital imaging. The basic concepts are explained with reference to optical microscopy, but then the article moves on to more general aspects of sampling in digital imaging. More detailed, and mathematical, treatments can be found in a range of literature but a particularly detailed and instructive description can be found in Chapter 4, Handbook of Biological Confocal Microscopy, 3rd edition, Ed J.B. Pawley, Springer 2006.
Vapor Coating: A Simple, Economical Procedure for Preparing Difficult Specimens for Scanning Electron Microscopy
Authors: Ellis E Ann , Pendleton Michael W 
Published: March 2018

Abstract
The Microscopy and Imaging Center at Texas A&M University is a multi-user facility involved with preparation and analysis of many different biological and materials sciences projects. Vapor stabilization and coating is an important part of our specimen preparation methodology for difficult biological and materials, especially polymer, samples. The procedure for all our vapor preparation techniques is done in a simple, economical apparatus set up in a properly functioning fume hood with a flow rate of at least 100 ft/min (Fig. 1). The apparatus is made from a glass petri dish or a glass petri dish for the bottom and an appropriate size beaker for the top. Specimens, mounted on stubs, are placed inside the chamber and the fixative (osmium tetroxide, ruthenium tetroxide or acrolein) is placed in a small container (plastic bottle cap) near the specimens.
Students and the SEM: The First Encounter
Authors: Dusevich VM , Eick JD 
Published: March 2018

Abstract
The first demonstration of an SEM to students is a rewarding experience. Whether it is the beginning of a course in instrumentation or just an illustration of the abilities of an SEM for “prospective users”, whether students have engineering or biological backgrounds, both graduate and undergraduate students are thrilled to see a “real electron microscope”. We thus have an easy task of only having to choose the right specimens to fulfill their anticipation and to present the right amount of information that will be easily absorbed and remembered for a long time.
Insects are the prima donnas of SEM imaging. We usually start our demonstrations with insects (Fig.1). Their multifaceted eyes, terrifying (at proper magnifications) mouths, exoskeletons, jointed limbs, and segmented bodies look so astonishingly alien under the microscope, so remarkably different from their familiar (to the naked eye) appearance, that insects unfailingly get the students thrilled and prepare them to absorb information.