Results 61 to 70 of about 448,070 (312)

Geoarqueología del oro en la zona minera de Pino del Oro (Zamora)

open access: yesMélanges de la Casa de Velázquez, 2018
In the Pino del Oro (Zamora) mining area primary gold deposits were worked during the first two centuries of the Roman Empire. Recent research has documented the occupation of the area and the extraction of gold in both the Roman and pre-Roman eras.
F. Javier Sánchez-Palencia   +2 more
doaj   +1 more source

Rotatable central composite design versus artificial neural network for modeling biosorption of Cr6+ by the immobilized Pseudomonas alcaliphila NEWG-2

open access: yesScientific Reports, 2021
Heavy metals, including chromium, are associated with developed industrialization and technological processes, causing imbalanced ecosystems and severe health concerns. The current study is of supreme priority because there is no previous work that dealt
WesamEldin I. A. Saber   +6 more
doaj   +1 more source

Obesity Subtypes and Longitudinal Trajectories of Function Over Seven Years of Follow‐Up: Data From the Multicenter Osteoarthritis Study

open access: yesArthritis Care &Research, EarlyView.
Objective Obesity, defined by body mass index (BMI) ≥30 kg/m2, is a risk factor for functional limitations in people with knee osteoarthritis (OA). However, function varies among such individuals. Our objective was to evaluate the implications of obesity subtypes on longitudinal patterns of physical functioning in people with or at risk for knee OA ...
Kristine Godziuk   +7 more
wiley   +1 more source

A comparative study using response surface methodology and artificial neural network towards optimized production of melanin by Aureobasidium pullulans AKW

open access: yesScientific Reports, 2023
The effect of three independent variables (i.e., tyrosine, sucrose, and incubation time) on melanin production by Aureobasidium pullulans AKW was unraveled by two distinctive approaches: response surface methodology (i.e.
WesamEldin I. A. Saber   +6 more
doaj   +1 more source

Carboxylic‐Acid Functionalized Multiwalled Carbon Nanotube‐Alkane‐Based Resistive Temperature Sensor for Cold Chain Applications

open access: yesAdvanced Engineering Materials, EarlyView.
This study presents a reversible temperature sensor with high switching ratio, ∼103. The device is fabricated using PET‐ITO and carbon nanotube dispersions in alkane. Considering its application in cold chain logistics, a proof‐of‐concept with LED is showcased. Thus, a temperature drop below the threshold temperature (crystallization temperature of the
Sunil Kumar Behera   +8 more
wiley   +1 more source

Structural changes in land use of agricultural holdings in hilly rural areas

open access: yesActa Geographica Slovenica, 2015
This paper analyses structural changes in agricultural holdings in the Škofja Loka region focusing on land use in the years 2000 and 2010. The analysis is conducted for the Škofja Loka region by socio-economic types of agricultural holdings, and by ...
Kristina Knific, Štefan Bojnec
doaj   +1 more source

The concept of agricultural land as the subject of agricultural tax

open access: yesPrawo Budżetowe Państwa i Samorządu, 2020
This article concerns the analysis of the scope of the agricultural tax in question. The research which has been carried out has led to the conclusion that the narrow methodology of determining basis for the assessment of agricultural classification as ...
Wojciech Gonet
doaj   +1 more source

Prediction of species composition ratios in pooled specimens of the Anopheles Hyrcanus group using quantitative sequencing

open access: yesMalaria Journal, 2021
Background Plasmodium vivax is transmitted by members of the Anopheles Hyrcanus Group that includes six species in the Republic of Korea: Anopheles sinensis sensu stricto (s.s.), Anopheles pullus, Anopheles kleini, Anopheles belenrae, Anopheles lesteri ...
Do Eun Lee   +5 more
doaj   +1 more source

Zein‐Based Adhesives: Sustainable Extraction and Application in Bioadhesive Technologies

open access: yesAdvanced Engineering Materials, EarlyView.
Zein is extracted from corn gluten meal using a simple and scalable process with high yield (~90%). The resulting protein is applied in bioadhesives modified with Ca2+ and Fe3+ ions, exhibiting substrate‐dependent adhesion. The findings demonstrate competitive bonding performance and highlight the role of ionic interactions in tuning adhesion ...
Paula Bertolino Sanvezzo   +3 more
wiley   +1 more source

A meta-analysis of phosphatase activity in agricultural settings in response to phosphorus deficiency [PDF]

open access: yes, 2022
Phosphorus (P) is a key limiting factor in crop growth and essential for agriculture. As plant uptake of P is inefficient, it is commonly applied to maintain crop yields leading to a range of negative environmental issues when applied in excess ...
Janes-Bassett, V.   +20 more
core   +1 more source

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