Results 31 to 40 of about 131,783 (293)

Analysis of the pigments in two modern Egyptian papyri using XRF technique

Brazilian Journal of Radiation Sciences, 2021
In this work, two modern Egyptian papyrus belonging to a private collection were analyzed using X-Ray Fluorescence technique (XRF). The papyri are genuine, made from the papyrus plant, and hand-painted. The papyri were bought in the city of Cairo, Egypt,
Raysa Costa Nardes
doaj   +1 more source

Light‐Driven Competitive Selection in a Protein‐Catalyzed Dissipative Peptide Replication

Angewandte Chemie, EarlyView.
A structurally flexible protein catalyzes replication within a dissipative reaction network driven by UVA‐induced disulfide rearrangements. The protein accelerates templated autocatalytic cycles with replication emerging as the dominant pathway.
Éva Bartus, Edit Wéber, Attila Tököli, Ferenc Bogár, Momen R. F. Mohamed, Gábor Kecskeméti, Zoltán Szabó, Zoltán Kele, András Perczel, Márton Gadanecz, Zoltán Orgován, György M. Keserű, Tamás A. Martinek   +12 more
wiley   +2 more sources

Anatomical, scanning electron microscopy, histological and histochemical studies of the orbital glands of the Egyptian agama Trapelus mutabilis

Journal of Basic and Applied Zoology, 2022
Background The orbital gland of the group agama (Agamidae) is not well-studied. Here is a first description of anatomical and histological studies on the orbital gland of the Egyptian agama Trapelus mutabilis.
Fatma Abdel-Regal Mahmoud, Samia Abdalla Gaber, Amany Salah Saad Mahmoud, Ali Gamal Gadel-Rab   +3 more
doaj   +1 more source

Resource allocation and growth strategies in a multi‐plant firm: Kanegafuchi Spinners in the early 20th century

Strategic Management Journal, EarlyView., 2023
Abstract Research Summary Using detailed plant‐ and individual‐level data from a major Japanese cotton spinning company in the early 20th century, we examine the within‐firm allocation of skilled human capital in conjunction with investment in physical capital, accompanying the firm's evolving strategic priorities.
Shotaro Yamaguchi, Serguey Braguinsky, Tetsuji Okazaki, Takenobu Yuki   +3 more
wiley   +1 more source

Investigation of Hybrid Methods for Elimination of Brilliant Blue Dye from Water Phase Using Various Nanomaterials Combined with Activated Sludge and Duckweed

Nanomaterials, 2021
The main goal of this experimental work is screening of different natural and synthetic nanomaterials and biopolymers that may improve elimination of stable micropollutants from water phase. In this work, as a target chemical acting as the micropollutant
Paweł K. Zarzycki, Lucyna Lewandowska, Bożena Fenert, Krzysztof Piaskowski, Janusz Kobaka   +4 more
doaj   +1 more source

Tackling the technical history of the textiles of El-Deir, Kharga Oasis, the Western Desert of Egypt [PDF]

, 2020
The site of El-Deir is situated north of Kharga in the “Great Oasis” of the Egyptian Western Desert (fig. 1). The site was occupied between the 6th century BC and the 6th century AD. A complex history emerged with the influence of many cultures: Persian,
Letellier-Willemin, Fleur
core   +1 more source

Stretching Method-Based Operational Modal Analysis of An Old Masonry Lighthouse. [PDF]

, 2019
We present in this paper a structural health monitoring study of the Egyptian lighthouse of Rethymnon in Crete, Greece. Using structural vibration data collected on a limited number of sensors during a 3-month period, we illustrate the potential of the ...
Daskalakis, Emmanouil, Kalogeras, Ioannis, Melis, Nikolaos S, Panagiotopoulos, Christos G, Tsogka, Chrysoula   +4 more
core   +2 more sources

Ultrathin 2D Inorganic Ancient Pigment Decorated 3D‐Printing Scaffold Enables Photonic Hyperthermia of Osteosarcoma in NIR‐II Biowindow and Concurrently Augments Bone Regeneration

Advanced Science, 2021
Osteosarcoma (OS) is the primary malignant bone tumor. Despite therapeutic strategies including surgery, chemotherapy, and radiotherapy have been introduced into the war of fighting OS, the 5‐year survival rate for patients still remains unchangeable for
Chao He, Caihong Dong, Luodan Yu, Yu Chen, Yongqiang Hao   +4 more
doaj   +1 more source

An evergreen blue. Spectroscopic properties of Egyptian blue from pyramids to Raphael, and beyond

Inorganica Chimica Acta, 2022
Egyptian blue, the oldest man-made blue ever, invented by the Egyptians around 5000 years ago has newly raised to prominence for its very recent finding on Raphael's Roman fresco the Triumph of Galatea hosted in Villa Farnesina, Rome. This is the first case in the Renaissance after centuries of oblivion.
Antonio Sgamellotti (a, b), Chiara Anselmi (c)   +2 more
openaire   +2 more sources

From Thin Films to Nanodots: Bottom‐Up Integration of Fe3O4 on Nb:STO for Functional Oxide Nanostructures

Advanced Materials, EarlyView.
Scalable bottom‐up fabrication of Fe3O4 nanodots on Nb:SrTiO3 using anodic alumina templates enables long‐range ordered arrays with diameters down to 30 nm. STEM highlights the epitaxial growth of Fe3O4 films on Nb:SrTiO3. Complementary polarized neutron reflectometry (PNR) and X‐ray magnetic circular dichroism (XMCD) measurements on continuous films ...
Yifan Xu, Connie Bednarski‐Meinke, Yen‐Po Liu, Erkai Wang, Asma Qdemat, Peijia Yuan, Lilian Maria Vogl, Patrick Schöffmann, Thomas Saerbeck, Chenyang Yin, Gerhard Dehm, Felix Gunkel, Regina Dittmann, Oleg Petracic, Mai Hussein Hamed   +14 more
wiley   +1 more source