20 research outputs found

    Diet and food strategies in a southern al-Andalusian urban environment during Caliphal period, ecija, Sevilla

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    The Iberian medieval period is unique in European history due to the widespread socio-cultural changes that took place after the arrival of Arabs, Berbers and Islam in 711 AD. Recently, isotopic research has been insightful on dietary shifts, status, resource availability and the impact of environment. However, there is no published isotopic research exploring these factors in southern Iberian populations, and as the history of this area differs to the northern regions, this leaves a significant lacuna in our knowledge. This research fills this gap via isotopic analysis of human (n = 66) and faunal (n = 13) samples from the 9th to the 13th century Écija, a town renowned for high temperatures and salinity. Stable carbon (δ13C) and nitrogen (δ15N) isotopes were assessed from rib collagen, while carbon (δ13C) values were derived from enamel apatite. Human diet is consistent with C3 plant consumption with a very minor contribution of C4 plants, an interesting feature considering the suitability of Écija to C4 cereal production. δ15N values vary among adults, which may suggest variable animal protein consumption or isotopic variation within animal species due to differences in foddering. Consideration of δ13C collagen and apatite values together may indicate sugarcane consumption, while moderate δ15N values do not suggest a strong aridity or salinity effect. Comparison with other Iberian groups shows similarities relating to time and location rather than by religion, although more multi-isotopic studies combined with zooarchaeology and botany may reveal subtle differences unobservable in carbon and nitrogen collagen studies alone.OLC is funded by Plan Galego I2C mod.B (ED481D 2017/014). The research was partially funded by the projects “Galician Paleodiet” and by Consiliencia network (ED 431D2017/08) Xunta de GaliciaS

    Heat loss due to radiation in a thermal conductivity apparatus

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    TransJoin: An Algorithm to Implement Division Operator of Relational Algebra in Structured Query Language

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    Abstract Division operator is one of operators in Relational Algebra which is not implemented directly in SQL (Structured Query Language) standard. Therefore it is not be able to retrieve division query results with an SQL statement in the current relational database management systems (RDBMS). Database programmers have to create a complicated query to perform the task. It is the only relational algebra operators which is not implemented in ANSI SQL standard. This research aimed to study and design an algorithm named TransJoin (transformation and join) to implement it in SQL. TransJoin works to relation P(x, y) divided by Q(y) resulted R(x) through grouping and transforming each y attribute becomes P’(x, y’) and Q’(y’) and each x value is a single tuple with y’ is a composite value of y. Then, result R(x) is resulted of joining P’(x, y’) and Q’(y’) relations by matching y’ attribute. TransJoin was implemented in an open source RDBMS SQLLite. TransJoin tested and delivered valid results by comparing of traditional SQL queries and our proposed SQL queries with various data. The research showed that our algorithm is much more efficient by consuming 0.078 milliseconds compared contrasted the traditional query in 1,974.08 milliseconds for 9,991 tuples.</jats:p

    Panicle blast severity identification in advance generation rice lines

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    Abstract Harvest failure due to blast (Pyricularia oryzae) in Indonesia was ranked fourth during 2015-2020. Establishing a panicle blast-resistant rice variety is crucial to prevent broader damage. The research aimed to evaluate the yield productivity at the blast endemic areas. The field experiment was held from April to July 2019 at Curugkembar Sukabumi. The statistic field design used Augmented with five blocks to manage 122 advanced rice lines in total, and six check varieties included leaf blast-resistant varieties. Pest and disease control based on Integrated Pest Management (IPM) standards, except for blast disease. Leaf blast infection occurs from vegetative and lasts to generative, which then continues to be a severed panicle blast. All tested lines and varieties were infected, with different severity. Two rice lines were resistant to panicle blast (scale 0), two lines were moderate resistant (scale 3), and the rest were susceptible (scale 5-9). The results of the augmented analysis for yield production showed that BP30533D-SKI-29-3-3 (8.96 t/ha) and BP31501D-SKI-28-1-0-0 (7.69 t/ha) lines were significantly better than INPARI 41 (3.6 t/ha) but susceptible to panicle blast (scaled 5 and 7). This result indicates that yield testing and blast screening would be better to run simultaneously.</jats:p

    Lodīs

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    REVIEW OF OBSTACLES WHICH INHIBIT ICT ADOPTION IN HIGHER EDUCATION

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    In view of the important role Information Communication and Technology play in education, most administrators of higher educational institutions have invested into these tools to advance teaching, learning and research. In spite of these huge investments, students, lecturers and administrators are yet to fully adopt these tools. This paper seeks to review obstacles which inhibit adoption of ICT in higher educational institutions. The review identified lack of institutional support, financial support, time to learn new technologies, access to computing, technical support and training. Other obstacles identified were technology reliability, uncertainty about its worth, resistance to change, negative attitude, awareness, relevance, ease of use, attitude of organization, and computer literacy. The article concluded that knowing the extent to which these barriers affect individuals and institutions may help in taking decision on how to tackle them

    Effect of row spacings and micronutrients on seed yield and quality of palak

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    The experiment was conducted in an open field during the Rabi seasons of 2020 and 2021 at the Vegetable Research Centre, College of Horticulture, BUAT, Banda, to study the effect of three row spacings and four micronutrient levels on the seed yield and quality of palak. The experiment was laid out in a FRBD with two factors, viz., row-spacings (S) and micronutrient applications (M). The first factor had three row-spacings 30 × 10 (S1), 40 × 10 (S2) and 50 × 10 (S3) whereas, the second factor had four micronutrient levels Control (M0), Zinc Sulphate Monohydrate at 20 kg/ha (M1), Disodium Octaborate Tetrahydrate (20 % B) at 20 kg/ha (M2) and equal quantity of each Zinc Sulphate Monohydrate, Disodium Octaborate Tetrahydrate with a commercial formulation at 10 kg/ha (M3) in a variety of ‘All Green’. Seeds were sown on November 19, 2020 and all micronutrients were applied through soil at 40 DAS. Results indicated that S3 recorded maximum values for plant height, number of leaves/plant, dry weight of plants, 50 % of flowering (DAS), number of spikes per plant, spike length, spikelet length, hundred seed weight, seedling shoot length, seedling root length, a total length of seedling, seedling dry weight, seedling vigour index-I (SVI-I) and seedling vigour index II (SVI-II). Maximum seed yield was found in the closest row-spacing (S1). Germination percentage was noted in S2 and S3, which was significantly higher than that in S1. Among the micronutrients, M2 registered maximum values for most of the crop growth and seed yield traits. In view of high seed yield and quality traits simultaneously, promising treatment combinations were S2M1, S2M2 and S3M3

    MANAJEMEN BISNIS DIGITAL: STRATEGI DAN PRAKTIK UNTUK GENERASI DIGITAL

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    Buku ini membahas berbagai aspek penting dari manajemen bisnis di era digital, dimulai dengan fokus pada manajemen rantai pasokan digital, analitik data, dan keamanan siber. Manajemen rantai pasokan digital merupakan kunci bagi perusahaan untuk meningkatkan efisiensi operasional dan menyesuaikan diri dengan permintaan pasar yang cepat berubah. Dalam konteks ini, analitik data berperan penting dalam pengambilan keputusan yang berbasis data, memungkinkan perusahaan untuk menganalisis tren dan perilaku pelanggan. Selain itu, keamanan siber dan manajemen risiko digital menjadi krusial, mengingat meningkatnya ancaman siber dan kebutuhan untuk melindungi informasi sensitif dalam lingkungan bisnis yang semakin kompleks. Selanjutnya, buku ini membahas juga tentang manajemen sumber daya manusia dan budaya digital yang esensial dalam menciptakan lingkungan kerja yang adaptif dan inovatif. Proses rekrutmen dan pengembangan talenta digital menjadi prioritas untuk memastikan bahwa perusahaan memiliki sumber daya manusia yang kompeten dalam menghadapi tantangan digital. Manajemen kinerja dan kolaborasi virtual semakin penting dalam konteks kerja jarak jauh, sementara pengembangan budaya organisasi digital membantu menciptakan nilai-nilai yang mendukung inovasi dan fleksibilitas. Keterampilan dan kompetensi kunci, seperti pemikiran analitis dan kemampuan kolaboratif, menjadi sangat penting untuk kesuksesan individu dan organisasi di era digital. Di bab terakhir, buku ini menggarisbawahi masa depan manajemen bisnis digital, termasuk strategi untuk tetap kompetitif dalam dinamika pasar yang terus berubah. Tantangan dan peluang yang muncul dalam lanskap bisnis digital menuntut perusahaan untuk beradaptasi dan inovasi. Perubahan dalam peran dan keterampilan manajer menjadi fokus, dengan tuntutan untuk memiliki wawasan yang lebih luas serta kemampuan untuk memimpin tim multikultural. Selain itu, isu etis dan tanggung jawab sosial perusahaan menjadi perhatian utama, mengingat pentingnya reputasi dan keberlanjutan di mata konsumen yang semakin kritis di era digital. Dengan demikian, buku ini memberikan panduan komprehensif tentang bagaimana manajer dan organisasi dapat bersiap menghadapi masa depan yang penuh ketidakpastian
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