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Bio blog: Dr Amanda Barnard grabs a bag of ‘firsts’ winning the Nobel Prize of nanoscience world: The Freynman Prize

The Feynman Prize for Nanotechnology was awarded last month to Dr Amanda Barnard. Often referred to as the Nobel Prize of nanoscience, the prize’s importance is remarkable in that it recognises prodigious talent in the sector and is a reliable predictor of scientific discoveries with a very high translational impact on industry.




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El PP designa a sus cuatro consejeros de RTVE para evitar que la corporación quede "en manos de Pedro Sánchez"

 Leer




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Mitos cubanos

Ni todos los negros tomamos café, ni "las prostitutas cubanas son las más cultas del mundo", ni todos los hombres son cubanos amantes perfectos...




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La sangre y las manos mexicanas salvaron a José Tomás

José Tomás tenía sangre mexicana antes y después de la trágica corrida del sábado. La llevaba antes de enfrentarse a 'Navegante' después de que una grave cogida, precisamente en Aguascalientes cuando tenía 18 años, le uniera definitivamente a esta tierra gracias a la sangre azteca que corría por sus venas y de la que siempre presumía.




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Quem é Marco Rubio, filho de imigrantes cubanos nomeado secretário de Estado por Trump

Com nomeação desta quarta-feira (13/11), Rubio se torna o latino-americano a chegar ao posto mais alto no governo dos Estados Unidos.




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Regulating the local microenvironment on porous Cu nanosheets for enhancing electrocatalytic CO2 reduction selectivity to ethylene

J. Mater. Chem. A, 2024, Advance Article
DOI: 10.1039/D4TA01198H, Paper
Dan Wang, Qingqing Song, Kaibin Li, Yuwei Zhou, Junjun Mao, Chenchen Zhang, Yang Lou, Chengsi Pan, Jiawei Zhang, Yongfa Zhu, Ying Zhang
Local microenvironments of the ECO2RR play an important role in tuning the adsorption energy of crucial intermediates, which helps enhance ECO2RR selectivity.
To cite this article before page numbers are assigned, use the DOI form of citation above.
The content of this RSS Feed (c) The Royal Society of Chemistry




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A multifunctional “three-in-one” fluorescent theranostic system for hepatic ischemia–reperfusion injury

Chem. Sci., 2024, Advance Article
DOI: 10.1039/D4SC04962D, Edge Article
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Jihong Liu, Dongni Yin, Wen Zhang, Xin Wang, Tony D. James, Ping Li, Bo Tang
A single-component multifunctional fluorescent theranostic system (MB-Gly) for use during hepatic ischemia-reperfusion injury (HIRI) has been developed.
To cite this article before page numbers are assigned, use the DOI form of citation above.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Advances in Detecting Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) Using Molecular Receptors and Nanostructured Assemblies

RSC Med. Chem., 2024, Accepted Manuscript
DOI: 10.1039/D4MD00661E, Review Article
Avijit Kumar Das
The detection and quantification of non-steroidal anti-inflammatory drugs (NSAIDs) are crucial due to their widespread use and potential impact on human health and the environment. This review provides a comprehensive...
The content of this RSS Feed (c) The Royal Society of Chemistry




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Synthesis of vanillin via oxidation of kenaf stalks in the presence of CeO2: tuning the catalytic behaviour of CeO2 via nanostructure morphology

RSC Adv., 2024, 14,36327-36339
DOI: 10.1039/D4RA05833J, Paper
Open Access
Anita Ramli, Nur Akila Syakida Idayu Khairul Anuar, Normawati Mohamad Yunus, Alina Rahayu Mohamed
A different form of CeO2 nanostructures gives a prevalence of specific crystalline facets which display different reactivity in various catalytic processes. By adapting the shape and size, certain crystal clear facets can be exposed, leading to different structural and redox properties.
The content of this RSS Feed (c) The Royal Society of Chemistry




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HermanosGuitarras




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Kamperen – Llanos de la pez

Ongeveer twee jaar geleden hebben we twee YouTubers ontdenkt die leuke inspirerende fimpjes maken. De eerste is ‘Bald and bankrupt‘, die hele leuke filmpjes maakt, met een beetje een educatieve ondertoon. De video die we van hem het leukst vinden … Lees verder




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St. Romanos' Nativity Kontakion

Don't miss this rich and inspiring reading by Frederica Mathewes-Green of the entire Nativity Kontakion written by St. Romanos the Melodist and translated by Fr. Ephrem Lash. It was taken from the book On the Life of Christ: Kontakia, published in 1994.




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St. Romanos Nativity Kontakion

Don't miss this rich and inspiring reading by Frederica of the entire Nativity Kontakion written by St. Romanos the Melodist and translated by Fr. Ephrem Lash. It was taken from the book On the Life of Christ: Kontakia, published in 1994.




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Our Fathers among the Saints Epiphanios and Germanos




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Our Fathers among the Saints Epiphanios and Germanos




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May 12 - Saints Epiphanios, Bishop Of Cyprus and Germanos, Archbishop Of Constantinople




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May 12 - Epiphanios and Germanos




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Oct 01 - St. Romanos The Melodist




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St Romanos the Melodist of Constantinople




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Our Fathers Among the Saints Epiphanios, Bishop of Cyprus and Germanos, Archbishop of Constant




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Our Fathers Among the Saints Epiphanios, Bishop of Cyprus and Germanos, Archbishop of Constantinople




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Our Fathers Among the Saints Epiphanios and Germanos




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Our Fathers among the Saints Epiphanios, bishop of Cyprus (403) and Germanos, Archbishop of Constant

Saint Epiphanios was born a Jew in Palestine, but he and his sister came to faith in Christ and were baptized together. Epiphanios gave all his possessions to the poor and became a monk. He knew St Hilarion the great (October 31), and traveled among the monks of Egypt to learn their ways and wisdom. The fame of his virtue spread so widely that several attempts were made to make him bishop, first in Egypt, then in Cyprus. Whenever Epiphanios heard of these plans, he fled the area. He was finally made bishop by means of a storm: told to go to Cyprus, he took ship instead for Gaza, but a contrary wind blew his ship directly to Cyprus, where "Epiphanios fell into the hands of bishops who had come together to elect a successor to the newly-departed Bishop of Constantia, and the venerable Epiphanios was at last constrained to be consecrated, about the year 367." (Great Horologion). He guarded his flock faithfully for the remainder of his life, working many miracles, defending the Church against the Arian heresy, and composing several books, of which the best-loved is the Panarion (from the Latin for 'bread-box'), an exposition of the Faith and an examination of eighty heresies. He was sometimes called the 'Five-tongued' because he was fluent in Hebrew, Egyptian, Syriac, Greek, and Latin.   Saint Germanos was the son of a prominent family, in Constantinople. He became Metropolitan of Cyzicus, then was elevated to the throne at Constantinople in 715. It was he who baptized the infant Constantine, who for his whole life was nicknamed "Copronymos" because he defecated in the baptismal font (though he was neither the first nor the last infant to do so). At this incident, Patriarch Germanos is said to have prophesied that the child would one day bring some foul heresy upon the Church, which he did, becoming a notorious iconoclast as emperor. Germanos openly opposed the decree of the Emperor Leo the Isaurian which began the persecution of the holy icons. For this he was deposed and driven into exile in 730. He lived the rest of his life in peace. Saint Germanos is the composer of many of the Church's hymns, notably those for the Feast of the Meeting in the Temple.   These two Saints are always commemorated together.




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Our Fathers among the Saints Epiphanios, bishop of Cyprus (403) and Germanos, Archbishop of Constant

Saint Epiphanios was born a Jew in Palestine, but he and his sister came to faith in Christ and were baptized together. Epiphanios gave all his possessions to the poor and became a monk. He knew St Hilarion the great (October 31), and traveled among the monks of Egypt to learn their ways and wisdom. The fame of his virtue spread so widely that several attempts were made to make him bishop, first in Egypt, then in Cyprus. Whenever Epiphanios heard of these plans, he fled the area. He was finally made bishop by means of a storm: told to go to Cyprus, he took ship instead for Gaza, but a contrary wind blew his ship directly to Cyprus, where "Epiphanios fell into the hands of bishops who had come together to elect a successor to the newly-departed Bishop of Constantia, and the venerable Epiphanios was at last constrained to be consecrated, about the year 367." (Great Horologion). He guarded his flock faithfully for the remainder of his life, working many miracles, defending the Church against the Arian heresy, and composing several books, of which the best-loved is the Panarion (from the Latin for 'bread-box'), an exposition of the Faith and an examination of eighty heresies. He was sometimes called the 'Five-tongued' because he was fluent in Hebrew, Egyptian, Syriac, Greek, and Latin.   Saint Germanos was the son of a prominent family, in Constantinople. He became Metropolitan of Cyzicus, then was elevated to the throne at Constantinople in 715. It was he who baptized the infant Constantine, who for his whole life was nicknamed "Copronymos" because he defecated in the baptismal font (though he was neither the first nor the last infant to do so). At this incident, Patriarch Germanos is said to have prophesied that the child would one day bring some foul heresy upon the Church, which he did, becoming a notorious iconoclast as emperor. Germanos openly opposed the decree of the Emperor Leo the Isaurian which began the persecution of the holy icons. For this he was deposed and driven into exile in 730. He lived the rest of his life in peace. Saint Germanos is the composer of many of the Church's hymns, notably those for the Feast of the Meeting in the Temple.




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St Romanos the Melodist of Constantinople (556)

He was born in Emessa in Syria, probably of Jewish parents. He served as a deacon in Beirut, then in Constantinople at the time of Patriarch Euphemius (490-496). He was illiterate, had no musical training, and was a poor singer; thus he was despised by many of the more cultivated clergy. One night, after Romanos had prayed to the Mother of God, she appeared to him in a dream, held out a piece of paper and told him to swallow it. On the following day, the Nativity of Christ, Romanos went to the ambon and, with an angelic voice, sang 'Today the Virgin...', which is still sung as the Kontakion of the Feast. All present were amazed at the completely unexpected beauty of the hymn and of Romanos' singing. St Romanos went on to compose more than a thousand Kontakia (which were once long hymns, not the short verses used in church today). He is almost certainly the author of the sublime Akathist Hymn to the Mother of God, which has served as the model for all other Akathists. He reposed in peace, while still a deacon of the Great Church in Constantinople. Many of his hymns were inspired by the hymns of St Ephraim of Syria.   The influence of Middle Eastern music on the hymnography of the Church is incalculable. Many of those who established the form of the Church's music were Syrians: two noted examples are St Romanos and St John of Damascus, who composed the Octoechos, the Pascha service, and the Funeral Service. Their music was in turn modeled on the music of the Hebrew temple. The Byzantine musical tradition has descended without break from the music sung in Christ's time, and presumably by Christ Himself.




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Our Fathers among the Saints Epiphanios, bishop of Cyprus (403) and Germanos, Archbishop of Constant

Saint Epiphanios was born a Jew in Palestine, but he and his sister came to faith in Christ and were baptized together. Epiphanios gave all his possessions to the poor and became a monk. He knew St Hilarion the great (October 31), and traveled among the monks of Egypt to learn their ways and wisdom. The fame of his virtue spread so widely that several attempts were made to make him bishop, first in Egypt, then in Cyprus. Whenever Epiphanios heard of these plans, he fled the area. He was finally made bishop by means of a storm: told to go to Cyprus, he took ship instead for Gaza, but a contrary wind blew his ship directly to Cyprus, where "Epiphanios fell into the hands of bishops who had come together to elect a successor to the newly-departed Bishop of Constantia, and the venerable Epiphanios was at last constrained to be consecrated, about the year 367." (Great Horologion). He guarded his flock faithfully for the remainder of his life, working many miracles, defending the Church against the Arian heresy, and composing several books, of which the best-loved is the Panarion (from the Latin for 'bread-box'), an exposition of the Faith and an examination of eighty heresies. He was sometimes called the 'Five-tongued' because he was fluent in Hebrew, Egyptian, Syriac, Greek, and Latin.   Saint Germanos was the son of a prominent family, in Constantinople. He became Metropolitan of Cyzicus, then was elevated to the throne at Constantinople in 715. It was he who baptized the infant Constantine, who for his whole life was nicknamed "Copronymos" because he defecated in the baptismal font (though he was neither the first nor the last infant to do so). At this incident, Patriarch Germanos is said to have prophesied that the child would one day bring some foul heresy upon the Church, which he did, becoming a notorious iconoclast as emperor. Germanos openly opposed the decree of the Emperor Leo the Isaurian which began the persecution of the holy icons. For this he was deposed and driven into exile in 730. He lived the rest of his life in peace. Saint Germanos is the composer of many of the Church's hymns, notably those for the Feast of the Meeting in the Temple.   These two Saints are always commemorated together.




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Our Fathers among the Saints Epiphanios, bishop of Cyprus (403) and Germanos, Archbishop of Constant

Saint Epiphanios was born a Jew in Palestine, but he and his sister came to faith in Christ and were baptized together. Epiphanios gave all his possessions to the poor and became a monk. He knew St Hilarion the great (October 31), and traveled among the monks of Egypt to learn their ways and wisdom. The fame of his virtue spread so widely that several attempts were made to make him bishop, first in Egypt, then in Cyprus. Whenever Epiphanios heard of these plans, he fled the area. He was finally made bishop by means of a storm: told to go to Cyprus, he took ship instead for Gaza, but a contrary wind blew his ship directly to Cyprus, where "Epiphanios fell into the hands of bishops who had come together to elect a successor to the newly-departed Bishop of Constantia, and the venerable Epiphanios was at last constrained to be consecrated, about the year 367." (Great Horologion). He guarded his flock faithfully for the remainder of his life, working many miracles, defending the Church against the Arian heresy, and composing several books, of which the best-loved is the Panarion (from the Latin for 'bread-box'), an exposition of the Faith and an examination of eighty heresies. He was sometimes called the 'Five-tongued' because he was fluent in Hebrew, Egyptian, Syriac, Greek, and Latin.   Saint Germanos was the son of a prominent family, in Constantinople. He became Metropolitan of Cyzicus, then was elevated to the throne at Constantinople in 715. It was he who baptized the infant Constantine, who for his whole life was nicknamed "Copronymos" because he defecated in the baptismal font (though he was neither the first nor the last infant to do so). At this incident, Patriarch Germanos is said to have prophesied that the child would one day bring some foul heresy upon the Church, which he did, becoming a notorious iconoclast as emperor. Germanos openly opposed the decree of the Emperor Leo the Isaurian which began the persecution of the holy icons. For this he was deposed and driven into exile in 730. He lived the rest of his life in peace. Saint Germanos is the composer of many of the Church's hymns, notably those for the Feast of the Meeting in the Temple.   These two Saints are always commemorated together.




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Our Fathers among the Saints Epiphanios, bishop of Cyprus (403) and Archbishop Germanos (740) - May 12th

Saint Epiphanios was born a Jew in Palestine, but he and his sister came to faith in Christ and were baptized together. Epiphanios gave all his possessions to the poor and became a monk. He knew St Hilarion the great (October 31), and traveled among the monks of Egypt to learn their ways and wisdom. The fame of his virtue spread so widely that several attempts were made to make him bishop, first in Egypt, then in Cyprus. Whenever Epiphanios heard of these plans, he fled the area. He was finally made bishop by means of a storm: told to go to Cyprus, he took ship instead for Gaza, but a contrary wind blew his ship directly to Cyprus, where "Epiphanios fell into the hands of bishops who had come together to elect a successor to the newly-departed Bishop of Constantia, and the venerable Epiphanios was at last constrained to be consecrated, about the year 367." (Great Horologion). He guarded his flock faithfully for the remainder of his life, working many miracles, defending the Church against the Arian heresy, and composing several books, of which the best-loved is the Panarion (from the Latin for 'bread-box'), an exposition of the Faith and an examination of eighty heresies. He was sometimes called the 'Five-tongued' because he was fluent in Hebrew, Egyptian, Syriac, Greek, and Latin.   Saint Germanos was the son of a prominent family, in Constantinople. He became Metropolitan of Cyzicus, then was elevated to the throne at Constantinople in 715. It was he who baptized the infant Constantine, who for his whole life was nicknamed "Copronymos" because he defecated in the baptismal font (though he was neither the first nor the last infant to do so). At this incident, Patriarch Germanos is said to have prophesied that the child would one day bring some foul heresy upon the Church, which he did, becoming a notorious iconoclast as emperor. Germanos openly opposed the decree of the Emperor Leo the Isaurian which began the persecution of the holy icons. For this he was deposed and driven into exile in 730. He lived the rest of his life in peace. Saint Germanos is the composer of many of the Church's hymns, notably those for the Feast of the Meeting in the Temple.   These two Saints are always commemorated together.




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Our Fathers among the Saints Epiphanios, bishop of Cyprus (403) and Archbishop Germanos (740) - May 12th

Saint Epiphanios was born a Jew in Palestine, but he and his sister came to faith in Christ and were baptized together. Epiphanios gave all his possessions to the poor and became a monk. He knew St Hilarion the great (October 31), and traveled among the monks of Egypt to learn their ways and wisdom. The fame of his virtue spread so widely that several attempts were made to make him bishop, first in Egypt, then in Cyprus. Whenever Epiphanios heard of these plans, he fled the area. He was finally made bishop by means of a storm: told to go to Cyprus, he took ship instead for Gaza, but a contrary wind blew his ship directly to Cyprus, where "Epiphanios fell into the hands of bishops who had come together to elect a successor to the newly-departed Bishop of Constantia, and the venerable Epiphanios was at last constrained to be consecrated, about the year 367." (Great Horologion). He guarded his flock faithfully for the remainder of his life, working many miracles, defending the Church against the Arian heresy, and composing several books, of which the best-loved is the Panarion (from the Latin for 'bread-box'), an exposition of the Faith and an examination of eighty heresies. He was sometimes called the 'Five-tongued' because he was fluent in Hebrew, Egyptian, Syriac, Greek, and Latin.   Saint Germanos was the son of a prominent family, in Constantinople. He became Metropolitan of Cyzicus, then was elevated to the throne at Constantinople in 715. It was he who baptized the infant Constantine, who for his whole life was nicknamed "Copronymos" because he defecated in the baptismal font (though he was neither the first nor the last infant to do so). At this incident, Patriarch Germanos is said to have prophesied that the child would one day bring some foul heresy upon the Church, which he did, becoming a notorious iconoclast as emperor. Germanos openly opposed the decree of the Emperor Leo the Isaurian which began the persecution of the holy icons. For this he was deposed and driven into exile in 730. He lived the rest of his life in peace. Saint Germanos is the composer of many of the Church's hymns, notably those for the Feast of the Meeting in the Temple.   These two Saints are always commemorated together.




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Sweet Song: A Story of Saint Romanos the Melodist

Sweet Song: A Story of Saint Romanos the Melodist by Jane G Meyer, illustrated by Dorrie Papdemetriou (Ancient Faith Publishing, 2013)




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Saint Stylianos

"Saint Stylianos," from The Lives of Our Saints, Illustrated Biographies Book 6 (Spiritual Fragrance Publishing, 2012)




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Oh Señor, Contéstanos

Padre Nicolás predicó sobre que necesitamos a pedir ayuda a Dios, para que nos puede guiar al cielo. (Mateo 19:16-26) Fr. Nicholas preached about how we have to ask God for his help, so he can show us how to get to heaven. (Matthew 19:16-26)




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Saint Romanos Records and Fullness of the Faith

Bobby Maddex interviews Ron Moore, the new owner of two online Orthodox retail outlets—Saint Romanos Records and Fullness of the Faith.




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God is With Us - The St. Romanos Chorale

Fr Joseph Huneycutt welcomes you to St Joseph Orthodox Church, Houston, Texas for this Special AFR Christmas presentation: “God is With Us” by the St Romanos Chorale under the direction of Dr William Attra. The St Romanos Chorale takes its name from the Syrian religious poet and hymnographer of the Eastern Orthodox Christian Church, St. Romanos, who is considered to be the greatest of the Byzantine melodist-poets. The Chorale is composed of singers from Orthodox Christian churches in the greater Houston area. The music is sung a cappella in both Byzantine and Slavonic styles, predominantly in English, but also in Greek, Arabic, and Slavonic. The Chorale has presented beautiful Orthodox Christian music to audiences throughout Texas and neighboring states at venues including major colleges and universities. The special Christmas performance you are about to hear was recorded on December 10, 2011, at St Joseph Antiochian Orthodox Church, Houston, Texas.




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PANOS Brands Acquires Assets of Tessemae's Salad Dressings

PANOS brands, LLC, a provider of branded consumer foods, announced that it has acquired certain assets of Tessemae's LLC, including the Salad Dressings & Condiments Business. Tessemae's is a leading brand in refrigerated and shelf stable organic salad dressings.




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Consejos de reclamaciones de seguros para los Texanos con daños por inundación

El Departamento de Seguros de Texas (Texas Department of Insurance, TDI, por su nombre y siglas en inglés) les recuerda a las víctimas de las inundaciones que deben documentar los daños y presentar las reclamaciones al seguro de inmediato.




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Crystal structure of guanosine 5'-monophosphate synthetase from the thermophilic bacterium Thermus thermophilus HB8

Guanosine 5'-monophosphate (GMP) synthetase (GuaA) catalyzes the last step of GMP synthesis in the purine nucleotide biosynthetic pathway. This enzyme catalyzes a reaction in which xanthine 5'-monophosphate (XMP) is converted to GMP in the presence of Gln and ATP through an adenyl-XMP intermediate. A structure of an XMP-bound form of GuaA from the domain Bacteria has not yet been determined. In this study, the crystal structure of an XMP-bound form of GuaA from the thermophilic bacterium Thermus thermophilus HB8 (TtGuaA) was determined at a resolution of 2.20 Å and that of an apo form of TtGuaA was determined at 2.10 Å resolution. TtGuaA forms a homodimer, and the monomer is composed of three domains, which is a typical structure for GuaA. Disordered regions in the crystal structure were obtained from the AlphaFold2-predicted model structure, and a model with substrates (Gln, XMP and ATP) was constructed for molecular-dynamics (MD) simulations. The structural fluctuations of the TtGuaA dimer as well as the interactions between the active-site residues were analyzed by MD simulations.




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Non-invasive nanoscale imaging of protein micro- and nanocrystals for screening crystallization conditions

The article presents a non-invasive nanoscale imaging technique that can be used in screening crystallization conditions for protein micro- and nanocrystals.




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Synchrotron infrared nanospectroscopy in fourth-generation storage rings

Fourth-generation synchrotron storage rings represent a significant milestone in synchrotron technology, offering outstandingly bright and tightly focused X-ray beams for a wide range of scientific applications. However, due to their inherently tight magnetic lattices, these storage rings have posed critical challenges for accessing lower-energy radiation, such as infrared (IR) and THz. Here the first-ever IR beamline to be installed and to operate at a fourth-generation synchrotron storage ring is introduced. This work encompasses several notable advancements, including a thorough examination of the new IR source at Sirius, a detailed description of the radiation extraction scheme, and the successful validation of our optical concept through both measurements and simulations. This optimal optical setup has enabled us to achieve an exceptionally wide frequency range for our nanospectroscopy experiments. Through the utilization of synchrotron IR nanospectroscopy on biological and hard matter samples, the practicality and effectiveness of this beamline has been successfully demonstrated. The advantages of fourth-generation synchrotron IR sources, which can now operate with unparalleled stability as a result of the stringent requirements for producing low-emittance X-rays, are emphasized.




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Nanostructure and dynamics of N-truncated copper amyloid-β peptides from advanced X-ray absorption fine structure

An X-ray absorption spectroscopy (XAS) electrochemical cell was used to collect high-quality XAS measurements of N-truncated Cu:amyloid-β (Cu:Aβ) samples under near-physiological conditions. N-truncated Cu:Aβ peptide complexes contribute to oxidative stress and neurotoxicity in Alzheimer's patients' brains. However, the redox properties of copper in different Aβ peptide sequences are inconsistent. Therefore, the geometry of binding sites for the copper binding in Aβ4–8/12/16 was determined using novel advanced extended X-ray absorption fine structure (EXAFS) analysis. This enables these peptides to perform redox cycles in a manner that might produce toxicity in human brains. Fluorescence XAS measurements were corrected for systematic errors including defective-pixel data, monochromator glitches and dispersion of pixel spectra. Experimental uncertainties at each data point were measured explicitly from the point-wise variance of corrected pixel measurements. The copper-binding environments of Aβ4–8/12/16 were precisely determined by fitting XAS measurements with propagated experimental uncertainties, advanced analysis and hypothesis testing, providing a mechanism to pursue many similarly complex questions in bioscience. The low-temperature XAS measurements here determine that CuII is bound to the first amino acids in the high-affinity amino-terminal copper and nickel (ATCUN) binding motif with an oxygen in a tetragonal pyramid geometry in the Aβ4–8/12/16 peptides. Room-temperature XAS electrochemical-cell measurements observe metal reduction in the Aβ4–16 peptide. Robust investigations of XAS provide structural details of CuII binding with a very different bis-His motif and a water oxygen in a quasi-tetrahedral geometry. Oxidized XAS measurements of Aβ4–12/16 imply that both CuII and CuIII are accommodated in an ATCUN-like binding site. Hypotheses for these CuI, CuII and CuIII geometries were proven and disproven using the novel data and statistical analysis including F tests. Structural parameters were determined with an accuracy some tenfold better than literature claims of past work. A new protocol was also developed using EXAFS data analysis for monitoring radiation damage. This gives a template for advanced analysis of complex biosystems.




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High-throughput nanoscale crystallization of di­hydro­pyridine active pharmaceutical ingredients

Single-crystal X-ray diffraction analysis of small molecule active pharmaceutical ingredients is a key technique in the confirmation of molecular connectivity, including absolute stereochemistry, as well as the solid-state form. However, accessing single crystals suitable for X-ray diffraction analysis of an active pharmaceutical ingredient can be experimentally laborious, especially considering the potential for multiple solid-state forms (solvates, hydrates and polymorphs). In recent years, methods for the exploration of experimental crystallization space of small molecules have undergone a `step-change', resulting in new high-throughput techniques becoming available. Here, the application of high-throughput encapsulated nanodroplet crystallization to a series of six di­hydro­pyridines, calcium channel blockers used in the treatment of hypertension related diseases, is described. This approach allowed 288 individual crystallization experiments to be performed in parallel on each molecule, resulting in rapid access to crystals and subsequent crystal structures for all six di­hydro­pyridines, as well as revealing a new solvate polymorph of nifedipine (1,4-dioxane solvate) and the first known solvate of nimodipine (DMSO solvate). This work further demonstrates the power of modern high-throughput crystallization methods in the exploration of the solid-state landscape of active pharmaceutical ingredients to facilitate crystal form discovery and structural analysis by single-crystal X-ray diffraction.




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Fast nanoscale imaging of strain in a multi-segment heterostructured nanowire with 2D Bragg ptychography

Developing semiconductor devices requires a fast and reliable source of strain information with high spatial resolution and strain sensitivity. This work investigates the strain in an axially heterostructured 180 nm-diameter GaInP nanowire with InP segments of varying lengths down to 9 nm, simultaneously probing both materials. Scanning X-ray diffraction (XRD) is compared with Bragg projection ptychography (BPP), a fast single-projection method. BPP offers a sufficient spatial resolution to reveal fine details within the largest segments, unlike scanning XRD. The spatial resolution affects the quantitative accuracy of the strain maps, where BPP shows much-improved agreement with an elastic 3D finite element model compared with scanning XRD. The sensitivity of BPP to small deviations from the Bragg condition is systematically investigated. The experimental confirmation of the model suggests that the large lattice mismatch of 1.52% is accommodated without defects.




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Accessing self-diffusion on nanosecond time and nanometre length scales with minute kinetic resolution

Neutron spectroscopy uniquely and non-destructively accesses diffusive dynamics in soft and biological matter, including for instance proteins in hydrated powders or in solution, and more generally dynamic properties of condensed matter on the molecular level. Given the limited neutron flux resulting in long counting times, it is important to optimize data acquisition for the specific question, in particular for time-resolved (kinetic) studies. The required acquisition time was recently significantly reduced by measurements of discrete energy transfers rather than quasi-continuous neutron scattering spectra on neutron backscattering spectrometers. Besides this reduction in acquisition times, smaller amounts of samples can be measured with better statistics, and most importantly, kinetically changing samples, such as aggregating or crystallizing samples, can be followed. However, given the small number of discrete energy transfers probed in this mode, established analysis frameworks for full spectra can break down. Presented here are new approaches to analyze measurements of diffusive dynamics recorded within fixed windows in energy transfer, and these are compared with the analysis of full spectra. The new approaches are tested by both modeled scattering functions and a comparative analysis of fixed energy window data and full spectra on well understood reference samples. This new approach can be employed successfully for kinetic studies of the dynamics focusing on the short-time apparent center-of-mass diffusion.




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Revealing nanoscale sorption mechanisms of gases in a highly porous silica aerogel

Geological formations provide a promising environment for the long-term and short-term storage of gases, including carbon dioxide, hydrogen and hydro­carbons, controlled by the rock-specific small-scale pore structure. This study investigates the nanoscale structure and gas uptake in a highly porous silica aerogel (a synthetic proxy for natural rocks) using transmission electron microscopy, X-ray diffraction, and small-angle and ultra-small-angle neutron scattering with a tracer of deuterated methane (CD4) at pressures up to 1000 bar. The results show that the adsorption of CD4 in the porous silica matrix is scale dependent. The pore space of the silica aerogel is fully accessible to the invading gas, which quickly equilibrates with the external pressure and shows no condensation on the sub-nanometre scale. In the 2.5–50 nm pore size region a classical two-phase adsorption behaviour is observed. The structure of the aerogel returns to its original state after the CD4 pressure has been released.




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15-Year Xbox Woman In Gaming, "MellowMutiny", Talks About Life During Gamergate, Being Kiwi Farmed, Red Pilled, And Being Manhandled By The Manosphere

Criminal harassment, pickup artists, and mental breakdowns...oh my!




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Christopher from The Sopranos Sheds Light on Carol Young's Concept of the Shadow Through His Drug Habit

The Anti Hero is Revealed.




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El diagnóstico y tratamiento tempranos de la enfermedad arterial periférica son esenciales para mejorar los resultados y reducir el riesgo de amputación

Aspectos destacados de la guía: La nueva guía conjunta de la American Heart Association (la Asociación Americana del Corazón) y el American College of Cardiology ofrece recomendaciones para guiar a los médicos en el tratamiento de pacientes con...




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Episode 122: Interview Janos Sztipanovits

This is a discussion with Janos Sztipanovits about Cyber Physical Systems and how DSLs are used to approach some of the challenges in that domain. Specifically, in the second part we talk about formalizing DSL semantics.




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Las razones por las que voté a Ciudadanos




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Interceptan 13 toneladas de cocaína en un cargamento de plátanos en el puerto de Algeciras

La droga viajaba en un contenedor procedente de Ecuador y la operación la han realizado la Policía Nacional y Vigilancia Aduanera Leer