Results 41 to 50 of about 42,415 (143)

Nanoclay- and alginate-based soil amendments preserve photosynthetic function, delay senescence, and reduce oxidative damage in drought-stressed wheat

Frontiers in Plant Science
IntroductionDrought stress accelerates leaf senescence, disrupts photosynthetic function, and enhances oxidative damage in wheat, yet the extent to which soil amendments can mitigate these responses remains insufficiently understood.
Ali El-Keblawy, Ali El-Keblawy, Ali El-Keblawy, Abdelaziz Elgamouz, Abdelaziz Elgamouz, Mohamed Abdallah, Mohamed G. Arab, Khalifa M. Alteneiji, Razan F. Alhammadi, Lamya Alsuwaidi, Walid Abo Baker, Mohammad A. Al-Faqieh, Soumya Koippully Manikandan, Soumya Koippully Manikandan   +13 more
doaj   +1 more source

Prenatal Determinants of Maternal 25(OH)D Levels at Delivery: The Role of Diet and Supplement Use in a Cross-Sectional Study in Greece

Medicina
Background and Objectives: Maternal vitamin D (25-hydroxyvitamin D, 25(OH)D) deficiency during pregnancy is associated with adverse outcomes for both mother and fetus. While vitamin D supplementation is commonly recommended, dietary and lifestyle factors
Artemisia Kokkinari, Evangelia Antoniou, Kleanthi Gourounti, Maria Dagla, Maria Iliadou, Ermioni Palaska, Eirini Tomara, Georgios Iatrakis   +7 more
doaj   +1 more source

Graph-Fused Multivariate Regression via Total Variation Regularization

, 2020
In this paper, we propose the Graph-Fused Multivariate Regression (GFMR) via Total Variation regularization, a novel method for estimating the association between a one-dimensional or multidimensional array outcome and scalar predictors. While we were motivated by data from neuroimaging and physical activity tracking, the methodology is designed and ...
Liu, Ying, Yan, Bowei, Merikangas, Kathleen, Shou, Haochang   +3 more
openaire   +2 more sources

Regular variation and related results for the multivariate GARCH\((p,q)\) model with constant conditional correlations

Journal of Multivariate Analysis, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Begoña Fernández, Nelson Muriel
  +5 more sources

Source Identification of Heavy Metals in Soils Surrounding the Zanjan Zinc Town by Multivariate Statistical Techniques

مجله آب و خاک, 2016
Introduction: The accumulation of heavy metals (HMs) in the soil is of increasing concern due to food safety issues, potential health risks, and the detrimental effects on soil ecosystems.
M.A. Delavar, Y. Safari
doaj   +1 more source

Multivariate regular variation of preferential attachment models

Advances in Applied Probability
Abstract We use the framework of multivariate regular variation to analyse the extremal behaviour of preferential attachment models. To this end, we follow a directed linear preferential attachment model for a random, heavy-tailed number of steps in time and treat the incoming edge count of all existing nodes as a random vector of ...
Anja Janssen, Max Ziegenbalg
openaire   +1 more source

Variação do Imperativo de 2ª pessoa em Enunciados de Provas da Escola de Formação de Professores Ferraz Bomboco (Huambo, Angola)

Linguística, 2019
The present paper aims to conduct a sociolinguistic study of the variation of strategies of affirmative second-person imperative (second-person form and third-person form) in the instructions of tests produced by Angolan teachers of the Teacher ...
António Kingui da Silva, Célia Lopes, Paulo Osório   +2 more
doaj  

Empirical Likelihood Based Testing for Multivariate Regular Variation

, 2023
Multivariate regular variation is a common assumption in the statistics literature and needs to be verified in real-data applications. We develop a novel hypothesis test for multivariate regular variation, employing localized empirical likelihood. We establish the weak convergence of the test statistic to a non-standard, distribution-free limit and ...
Einmahl, John, Krajina, Andrea
openaire   +1 more source

Conservation implications of high gene flow and lack of pronounced spatial genetic structure in elephants supported by contiguous suitable habitat in north‐western India

Conservation Science and Practice
The western Terai Arc Landscape (wTAL) in Uttarakhand, India, marks the range limit for the Asian elephant in north‐western India. This region has been impacted by land‐use changes and infrastructure expansion for the last seven decades.
Rahul De, Reeta Sharma, Sujeet Kumar Singh, Rita Rasteiro, Ranjana Bhaskar, Imran Khan, Rajapandian Kanagaraj, Kashmira Kakati, Parag Nigam, A. Christy Williams, Priya Davidar, Bilal Habib, Surendra Prakash Goyal   +12 more
doaj   +1 more source

Hydrogeochemical assessment and quality evaluation of spring water for drinking and irrigation purposes in lower Shivalik Himalayan region

Environment Conservation Journal
The spring water sources in the Himalayan foothills are a key source of drinking and irrigation water but are being overrun by urbanization, land-use development, and weather variation.
Aditi Bisht, Rajendra Dutt Saklani, Surabhi Sagar, Prachi Tyagi, Vishal Kamboj   +4 more
doaj   +1 more source