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Nitrogen (N) fertilizer represents a significant cost for the grower and may also have environmental impacts through nitrate leaching and N2O (a greenhouse gas) emissions associated with denitrification. The objectives of this study were to quantify the genetic variability in N partitioning and N remobilization in Indian spring wheat cultivars and identify traits for improved grain yield and grain protein content for application in breeding N-efficient cultivars. Twenty-eight bread wheat cultivars and two durum wheat cultivars were tested in field experiments in two years in Maharashtra, India. Growth analysis was conducted at anthesis and harvest to assess above-ground dry matter (DM) and dry matter and N partitioning. Flag-leaf photosynthesis rate (A max ), flag-leaf senescence rate and canopy normalized difference vegetation index (NDVI) were also assessed. Significant N × genotype level interaction was observed for grain yield and N-use efficiency. There was a positive linear association between post-anthesis flag-leaf A max and grain yield amongst the 30 genotypes under high N (HN) conditions. Flag-leaf A max was positively associated with N uptake at anthesis (AGNA). Under both HN and low N (LN) conditions, higher N uptake at anthesis was associated with delayed onset of flag-leaf senescence and higher grain yield. Under N limitation, there was a genetic negative correlation between grain yield and grain protein concentration. Deviation from this negative relationship (grain protein deviation or GPD) was related to genotypic differences in post-anthesis N uptake. It is concluded that N uptake at anthesis was an important determinant of flag-leaf photosynthesis rate and grain yield under high N conditions; while post-anthesis N uptake was an important determinant of GPD of wheat grown under low to moderate N conditions in India.Information on understory composition and its relationships with the overstory tree canopy, especially leaf area index (LAI), is crucially needed in, e.g., modeling land-atmosphere interactions and productivity of forests. There are also several global LAI products produced from satellite data which need to be validated with ground reference data. However, to date, only scarce field data on simultaneous structural properties of under- and overstory vegetation, and tree canopy LAI, have been available in boreal forests. This paper shows how understory composition and fractional cover of different species types varies in a boreal forest site, and how it is linked to structural properties of the tree layer. The study is based on 301 understory plots collected in an area of ∼16 km2 around Hyytiälä forestry field station, Finland (61°50'N, 24°17'E) in a southern boreal forest site. Forest understory plot data was accompanied with measurements of both standard forest inventory variables and optically-based canopy light transmittance data. Clear differences in average species composition between different site fertility types were observed, but also large variation within each site fertility type was noted. Forest understory composition was better correlated with structural forest canopy measures (e.g., tree canopy LAI, canopy cover, canopy openness) than with traditional forest inventory variables such as tree height or diameter. Forest canopy LAI and the fractional cover of understory were strongly related, especially in more fertile sites. Our results highlight the role of tree canopy structural metrics as modifiers of the understory light climate and growing conditions, also, in boreal forests.This article analyzes the political economy of sexually affective data on the Chinese gay dating platform Blued. Having launched in 2012 as a location-based dating app akin to Grindr, Blued has now become a multipurpose platform providing extra services such as newsfeeds and live streaming. Through the continuous imbrication of old and new functionalities and related affordances, users are transformed from dating subjects into performative laborers. Based on Internet ethnographic research that lasted 2 years, this article focuses on sexual-affective data flows (e.g. virtual gifting, following, liking, commenting, and sharing) produced by gay live streamers within the parameters of same-sex desires such as infatuation, sexual arousal, and online intimacy. It argues that these sexually affective data flows increasingly constitute key corporate assets with which Blued attracts venture capital. This analysis of live streamers and their viewers extends understandings of dating apps in two ways. First, it shows how these apps now function as business platforms on top of being channels for hooking up. Second, it emphasizes that whereas users created data freely, now it is produced by paid labor.The mental health of young people is a preoccupation across the West. Youth suicide is a rising problem. Are we exploring the reasons for this with honesty and courage? Mental health and emotional security are bound up with a sense of identity and belonging.The ethics of heritable genome editing (HGE), or germline engineering, are currently being debated vigorously among scientists and bioethicists, and the Catholic Church has declared the procedure to be morally illicit. While these judgments are based mostly on the justice and consequences of the act, a fruitful approach is to consider HGE from the perspective of the virtuous Christian. This article examines participation in HGE according to the virtues of charity, justice, hope, faith, fortitude, temperance, and prudence. HGE does not appear to be consonant with the virtuous life of a Christian person. Summary The article evaluates heritable genome editing (HGE or genetic engineering of embryos) according to the Christian virtues of charity, justice, hope, faith, fortitude, temperance, and prudence. HGE does not seem to be consonant with the virtuous life of a Christian person.One aspect of the progressive secularization of biotechnology is the use of the by-products from abortion and the use of human embryos. https://www.selleckchem.com/products/caspofungin-acetate.html These morally illicit cells and tissue create a significant moral and economic challenge for Catholics at different stages of their career. A practicing Catholic physician or scientific professional will face the dilemma of how to reconcile their Catholic identity with their profession. While the Catechism is clear on what actions Catholics should not pursue, there has been less religious guidance on what activities Catholics should proactively pursue in their professional life to advance the Catholic culture. This essay will examine these themes through the lens of a true story of the author's experience in starting Catholic for-profit and nonprofit biotechnology organizations. Summary Abortion and the destruction of human embryos create a moral dilemma for Catholics at different stages of a physician or scientist's career. A practicing Catholic physician or scientist must reconcile their Catholic identity with their profession.
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