Results 21 to 30 of about 21,966 (224)

Total and extractable forms of Cu, Zn, Ni, Cr, and Fe in vineyard soil (Valandovo valley, Macedonia) determined by a sequential extraction procedure

open access: yesMacedonian Journal of Chemistry and Chemical Engineering, 2012
The total and extractable forms of Cu, Zn, Pb, Ni, Cr, and Fe in vineyard soils from Valandovo valley were analyzed in order to understand the existence of metals in soils and their potential availability to the flora and fauna.
Elizabeta Karakaseva   +2 more
doaj   +1 more source

CONDITIONS AND PERSPECTIVES FOR DEVELOPMENT OF THE TOURISM IN DOJRAN AS WELL AS DOJRAN LAKE [PDF]

open access: yesJournal of Process Management and New Technologies, 2016
The favorable location, climate as well as the natural resources are the basic conditions for tourism development in one area. The wealth from the historical past, with visible marks in the present, the cherishing of the tradition and the culture ...
Zlatko Jakovlev   +3 more
doaj   +1 more source

A comparative study of the procedures for medicine approval in the European Union and the United States [PDF]

open access: yesArhiv za farmaciju
Medicine registration refers to evaluating a medical product's safety, efficacy, and quality, leading to the granting of a Marketing Authorization. Given the intense globalization of the pharmaceutical industry, harmonizing regulatory procedures between ...
Gjeorgiev Blagoj   +6 more
doaj   +1 more source

Goce Gavrilovski- Duni-Daj; Grace Notes [PDF]

open access: yes, 2021
Mrmevska/Cognet “Four Hands Unbound” (Sun, 7:00 PM ET, 10/31/21 - 11/7/21) Musicivic Tour Page: https://musicivic.net/mc21-0029 Support Musicivic: http://donate.musicivic.net Artists: Kalina Mrmevska, piano Matthieu Cognet, piano Goce Gavrilovski (
Gavrilovski, Goce
core  

Exploring the performance of ChatGPT for numerical solution of ordinary differential equations

open access: yesJournal of Technology and Science Education
This study aims to evaluate ChatGPT’s capabilities in certain numerical analysis problem: solving ordinary differential equations. The methodology which is developed in order to conduct this research takes into account the following mathematical ...
Saso Koceski   +4 more
doaj   +1 more source

Transanal Hemorrhoidal Dearterialization (THD): A Single Center Experience on 100 Consecutive Cases

open access: yesLietuvos Chirurgija
Introduction. Surgeons, using all available means for the treatment of the hemorrhoidal disease, must make compromises between the radicality of the potential surgical treatment (to prevent recurrence) and the maintenance of the postoperative ...
Aleksandar Mitevski   +3 more
doaj   +3 more sources

An iterative Wiener filtering method based on the gravity gradient invariants

open access: yesGeodesy and Geodynamics, 2015
How to deal with colored noises of GOCE (Gravity field and steady – state Ocean Circulation Explorer) satellite has been the key to data processing. This paper focused on colored noises of GOCE gradient data and the frequency spectrum analysis. According
Rui Zhou, Xiaoping Wu
doaj   +1 more source

A Machine‐Learning‐Based Global Thermospheric Density Forecasting Model

open access: yesSpace Weather, Volume 24, Issue 6, June 2026.
Abstract Thermospheric mass density governs aerodynamic drag in low Earth orbit and is a primary source of uncertainty in orbit prediction and conjunction assessment, particularly during geomagnetic disturbances. We present AETHER‐P3 ${\mathrm{P}}^{3}$ (Accelerometer‐driven Estimation of THERmospheric density–A Physics‐Informed Probabilistic Prediction
Ruochen Wang, Xiaoli Bai
wiley   +1 more source

Kinetic studies of manganese removal from aqueous solution by adsorption on natural zeolite

open access: yesMacedonian Journal of Chemistry and Chemical Engineering, 2015
The kinetics of manganese adsorption onto natural zeolite (clinoptilolite) were studied with respect to initial metal ion concentration and adsorbent mass.
Afrodita Zendelska   +6 more
doaj   +1 more source

Voltammetric biosensors based on metallic nanoparticles synthesized from plant extracts: A short overview of recent achievements

open access: yesMacedonian Journal of Chemistry and Chemical Engineering, 2023
Since the last decade of the 20th century, many scientific disciplines have heavily relied on materials with nanometer dimensions. Nanomaterials are already integrated into numerous biomedical and pharmaceutical applications, including the delivery of ...
Rubin Gulaboski   +3 more
doaj   +1 more source

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