Results 11 to 20 of about 16,153 (254)

Deuterium Isotope Probing: a potential game-changer in assessing chemical persistency in soil [PDF]

open access: yes, 2023
Chemical persistency studies are crucial for the regulatory risk assessment of chemicals. One of their major challenges is the formation of so-called non-extractable residues (NERs) in soil as current analytics cannot easily differentiate hazardous ...
Sophie, Lennartz   +4 more
core   +1 more source

Persistent Object Search and Surveillance Control With Safety Certificates for Drone Networks Based on Control Barrier Functions

open access: yesFrontiers in Robotics and AI, 2021
In this paper, we address a persistent object search and surveillance mission for drone networks equipped with onboard cameras, and present a safe control strategy based on control barrier functions The mission for the object search and surveillance in ...
Hayato Dan   +4 more
doaj   +1 more source

Genetic parameters for milk yield and lactation persistency in the three first parities of Iranian Holstein cows

open access: yesRevista Colombiana de Ciencias Pecuarias, 2019
Background: Lactation persistency influences cow health and reproduction and has an impact on the feed costs of dairy farms. Objective: To estimate (co)variance components and genetic parameters of 100- and 305-d milk yield, and lactation persistency in ...
Farzane Shokri-Sangari   +3 more
doaj   +1 more source

Predictors of Persistent Medically Unexplained Physical Symptoms: Findings From a General Population Study

open access: yesFrontiers in Psychiatry, 2018
Objective: To explore the persistency of Medically Unexplained Symptoms (MUS) and its prognostic factors in the general adult population. Knowledge of prognostic factors of MUS may indicate possible avenues for intervention development.Methods: Data were
Jonna F. van Eck van der Sluijs   +8 more
doaj   +1 more source

Persistency of Cannabis Use Predicts Violence following Acute Psychiatric Discharge

open access: yesFrontiers in Psychiatry, 2017
BackgroundViolence is a major concern and is prevalent across several mental disorders. The use of substances has been associated with an exacerbation of psychiatric symptoms as well as with violence.
Jules R. Dugré   +9 more
doaj   +1 more source

Parameters of lactation shape as related to days-in-milk in buffaloes from two different farming systems [PDF]

open access: yesJournal of Central European Agriculture, 2020
Buffaloes from intensive (farm 1 - Fm1; 438 normal, 115 short lactations) and pasture (farm 2 - Fm2; 330 + 58 lactations) system were assigned to study lactation curve via ANOVA (LSMLMW and MIXMDL) per each 10-day period (“tenday”), as well as overall ...
Pencho PENCHEV   +3 more
doaj   +1 more source

Effect of Cyclic Freezing-Thawing on the Shear Mechanical Characteristics of Nonpersistent Joints

open access: yesAdvances in Materials Science and Engineering, 2019
The effects of freezing-thawing cycles and persistency differences have a significant impact on the shear mechanical properties of joints. In this paper, a series of joints direct shear tests were performed on freezing-thawing treated joints to ...
Daxing Lei   +4 more
doaj   +1 more source

Short communication: Genetic analysis of lactation curves in buffaloes, using Wood’s model

open access: yesSpanish Journal of Agricultural Research, 2020
Aim of study: To estimate the heritability and genetic correlations for lactation curve traits in buffaloes. Area of study: The buffalo cows were raised on properties located in the states of São Paulo, Ceará and Rio Grande do Norte, Brazil.
Ludmilla A. Marques de Carvalho   +8 more
doaj   +1 more source

VARIATION OF THE NORTH ATLANTIC OSCILLATION ACCORDING TO HURRELL’S NAO DJFM INDEX (1864-2019) [PDF]

open access: yesPrzegląd Geofizyczny, 2021
The article presents statistics describing the temporal variation of the NAODJFM index, including the variation of the differences between the indices in successive years (Δi = NAODJFMi+1 -NAODJFMi).
Krzysztof Kożuchowski, Joanna Wibig
doaj   +1 more source

Genetic And Phenotypic Evaluation of Lactation Curve Parameters for Holstein Cattle in Egypt [PDF]

open access: yesJournal of Animal and Poultry Production
This study examined lactation curve parameters and their genetic relationships in Holstein cows using 1,684 test-day milk yield records collected from 2017 to 2019 in Fayoum Governorate, Egypt. Wood's gamma function modeled lactation curves.
Rasha Somedia
doaj   +1 more source

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